How long does distilled water last + tips, conditions, what to do

How long can distilled water be stored without it spoiling?

Distilled water is a liquid in which there are no bacteria, salts, practically dead water cannot turn sour, and if it is stored in a container with a closed lid, preventing the entry of all kinds of debris and dust, it can be stored for at least a century, nothing will happen to it.

Distilled water is water that has already been purified; it does not contain bacteria or various organisms, so it can be stored for a long time.

But many believe that it is undesirable to use such water, since there is simply no usefulness in it; along with purification, useful elements and vitamins leave, some even call such water “Dead,” hinting at its unhealthiness and low efficiency.

In principle, such water can be drunk (and stored) for six months, but if used for other purposes, it can be stored for about five years.

You can store distilled water for an unlimited amount of time, relatively speaking, of course. No one has checked what will happen to it in 100 or more years, but since this water is completely purified, no processes can occur. If you take, for example, tap water and put it in a bottle, then after a while you will see green formations. This will not happen in purified water because it does not contain the necessary bacteria. If such water is sealed and no organisms can enter it, then its shelf life is practically unlimited.

Distilled water is water that has already been purified; it does not contain bacteria or various organisms, so it can be stored for a long time.

Mineral

Mineral water is water that contains dissolved salts , trace elements, and biologically active components.

Mineral waters are not only for drinking ( table and medicinal ), but also for external use .

Many of them are widely used in spa treatment - for baths, inhalations, rinsing, irrigation and washing of organs, etc.

Mineral waters are sold in volumes of 0.33–0.5 liters in glass containers and 0.5–2.0 liters in polyethylene containers.

Mineral water is stored from 3 to 18 months if it is packaged in plastic containers, and up to 24 months if bottles are made of glass.

Each mineral water has its own expiration date, which is notified to the consumer by marks on the bottle label.

Uncorked water should be consumed within 5 days at the latest. Waters with organic substances ( such as naftusya) are stored for no longer than 1 week in the refrigerator.

If the specified periods and storage conditions are met, mineral waters from a bottle have the same effect on the body as those taken at resorts directly from the sources. Long-term storage leads to denaturation of the product - a change in taste and properties, and if you purchased such a product, you have every right to return .

Definition

As you know from a school chemistry course, water is hydrogen oxide , which has the formula H2O, that is, it consists of two hydrogen atoms and one oxygen atom.

Under natural conditions, it also contains salts and gases.

It is usually odorless, and in small quantities it is colorless and transparent.

Water performs the functions of a solvent, reagent , and heat conductor.

Due to such demand, water is a popular commodity .

But different industries use their own special water :

distilled - for technical, household and medical needs;
bottled - for daily drinking ;
mineral - depending on the chemical composition for drinking every day and for medicinal purposes;
for injections - as a component of medicinal solutions.

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Many consumers are interested in: does water have a shelf life and what determines it? More on this later.

For injection

Water for injection is a sterile liquid , which is characterized by a transparent color, tasteless and odorless.

It is obtained from drinking or purified water.

It is used in medicine for diluting drugs administered in the form of injections, infusions, as well as for dissolving powder drugs.

It is also used externally - for wetting dressings, washing wounds, etc.

Water for injections is packaged in ampoules or vials .

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They can be made of glass or polymer fiber, opened and used under sterile conditions.

The shelf life of water for injection, bottled in ampoules, is 4 years .

Since this drug is a medicinal product, it cannot be used after the shelf life specified by the manufacturer has expired.

The reason for this is the reaction between the drug and container glass with the release of toxic products, microbial contamination of water.

This may affect the properties of the drug for which the drug is used as a solvent, and as a result, the patient’s health.

it is prohibited to transfer water for injection into another container .

The remaining water from the opened ampoule is used no later than 24 hours, since the liquid very quickly loses its sterility.

For further storage, the neck of the ampoule must be closed with a piece of cotton wool soaked in alcohol.

However, experts advise using a new portion of the drug .

Water, it would seem, is such a simple and unpretentious product to use.

However, it can quickly lose its qualities if it is not stored correctly, and even become dangerous to human health.

In order for it to bring maximum benefit and retain its properties longer, you need to follow simple rules :

It is better to buy water, regardless of its purpose, in glass containers;
It is not recommended to leave water, especially mineral water and for injection, in direct sunlight;
It is recommended to store the product in the same container in which it was purchased - it is treated in a special way to maintain freshness longer.

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Each mineral water has its own expiration date, which is notified to the consumer by marks on the bottle label.

It is better to keep it open on the refrigerator shelf, since at room temperature after a few hours it will acquire an unpleasant taste and a musty smell.

Water is the most common substance in the natural environment. It forms seas, oceans, and is the main component of the cells of all living organisms.

What affects shelf life

The preservation of the physicochemical characteristics of distilled water depends on the following factors:

Tara . Must be kept in a closed, sealed container made of inert material. It is recommended to use containers made of glass, ceramics, plastic, fluoroplastic or enamel dishes. The container must be hermetically sealed.
Temperature . Should be in the range from +5°C to +30°C. Should not be left near heat sources.
Humidity . It should not be elevated, the optimal level is 40-50%.
Illumination . Should be kept in a place protected from direct sunlight.

Does water have an expiration date?

The shelf life of bottled water is set by the manufacturer and depends on the composition and properties of the container. To get the expected benefits, you must take these parameters into account, as well as follow storage rules.

In law

The law regulates quality using standards:

Marking

The marking is indicated on the label and contains the information:

Name;
carbonated or non-carbonated;
group of mineral water, which is determined based on the composition and region of production (hydrocarbonate magnesium-calcium, hydrocarbonate sodium, sulfate-bicarbonate magnesium-sodium). Affiliation is determined by special laboratories;
well number, field name;
details of the company that handled the spill;
volume;
purpose (dining room, medical);
mineralization;
storage conditions;
spill date;
ionic composition, concentration of biologically active substances;
medical indications for use;
document to which it corresponds.

For example, Essentuki-4 is a natural medicinal table chloride-hydrocarbon sodium, boric (salt-alkaline) drinking mineral water of medium mineralization.

Timing and types

Kinds	Expiration dates
Fridge	At room t	Before opening (months)	After opening (days)
Bottled	3-24	3-24 (months)	3-24	3-5
19 l bottles	—	24	3-5
Mineral	3-5	3-24	3-5
Key	up to 2 days	1 day	—	—
Boiled	up to 2 days	1 day	—	—
Purified	up to 2 days	1 day	—	—
For injection	48	48	48	—

Differences

Bottled is a liquid of different purposes, bottled for ease of sale through retail chains. May be:

Drinking. It is actively purchased by commercial and government organizations, and children's institutions where it is not possible to install a stationary filter for cleaning. For 19-liter models, a cooler is used - an easy-to-use device that does not require special maintenance.
Carbonated.
Mineral.
Distilled. Obtained by distillation through a special apparatus. This is a liquid purified from salts and microelements, with properties similar to melt water from mountain peaks. Used for drinking and in industry.
Deionized. Purified from impurity ions, it is considered one of the safest varieties, but may contain non-ionic components.

Bottled is bottled in volumes from 0.33 to 19 liters. The material can be glass or plastic. The latter has a significant impact on the shelf life of the contents. It deteriorates and begins to release dangerous chemicals.

IMPORTANT! Microplastic particles, along with liquid, enter the body, producing a toxic and carcinogenic effect. Therefore, it is recommended to strictly adhere to the temporary standards indicated by the manufacturer.

Mineral water is considered more useful, enriched with salts, biologically active components, and microelements. Divided by:

Dining room. Can be consumed daily, sometimes with the addition of flavor accents, such as lemon.
Medicinal. The composition is intended for the treatment of certain diseases. Must be used as prescribed by a doctor.
For external use. Used for baths, inhalations, irrigation, rinsing during spa treatment.

Each of them has a specific shelf life set by the manufacturer from 3 to 24 months. If the conditions are met, all properties correspond to the original ones.

IMPORTANT! Long-term storage leads to denaturation of the liquid, that is, a change in taste and properties.

The key is extracted directly from a healing source during a stay at a sanatorium-resort treatment.

It is not recommended to store it, as it is rich in microelements and minerals, flows in the natural environment and is an excellent breeding ground for pathogenic microorganisms.

Industrially, it is pumped and bottled in sealed bottles. Since interaction with the external environment is limited, the benefits last longer.

Boiled - water that has been disinfected under the influence of high temperatures during boiling, for example in a kettle. It is important to understand that in addition to microbes and bacteria, beneficial substances also die. Therefore, after boiling it acquires neutral properties.

Purified water means water that has passed through a filter or treatment plant. They can be installed directly on the apartment’s water supply system or used separately. They are adapted for chemical and mechanical purification of liquids. Cartridges must be changed regularly to ensure proper cleaning.

Water for injection is sold in pharmacies and is a sterile liquid without color, smell, or taste. It is used to dilute medications, powders, and moisten the material for dressings and washing wounds.

It is bottled in ampoules and bottles, packed in cardboard boxes. Use beyond the established storage period is unacceptable, as the sterile properties may be lost. The period is 4 years.

Storage

In order for water to remain good for as long as possible, storage rules must be followed.

Bottled bottles must be protected from direct sunlight and heating devices, since storage at temperatures above 30 °C accelerates the process of deterioration of plastic containers and their contents. The optimal temperature range is +5…20 °C. You also need to screw the lid tightly.

It is better to keep it open on the refrigerator shelf, since at room temperature after a few hours it will acquire an unpleasant taste and a musty smell.

As for water for injection, special requirements are imposed on its content, since it interacts with medications. It should be kept in the original packaging, in a dark, cool place.

Is it possible to drink expired

There will be no immediate negative effect or poisoning from drinking expired water. Mineral water will lose its beneficial properties and will not have the expected healing effect, and drinking water will acquire an unpleasant musty smell and taste.

Regular consumption can indeed lead to poisoning and pathological processes in the body, since the proliferation of bacteria and microorganisms actively occurs in stagnant water, and expired containers contribute to this.

Conclusion

Water is the basis of human life and other living organisms. To maintain vital processes, it must be clean and fresh. Humanity has learned to purify and extend the shelf life of liquids, but you need to carefully select containers and track the date of spill. Glass tanks are safer and more environmentally friendly.

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Shelf life of distilled water: how and for how long you can store water in plastic bottles

Get rid of any water that looks dirty.
If you have no choice but to use it, clean it first. — It is best to strain and boil water that has been stored for a long time before drinking, because an upset stomach will cause diarrhea, and it greatly dehydrates and weakens the body.

Some people advise adding salt before adding water for long-term storage. The proportions are different, somewhere around 0.5-1 g per liter.

The article Concept for Stockpiling Food and Water in Case of Emergency discussed the storage of water in case of emergency. Now I will write in more detail about long-term storage of water supplies. What is described below is aimed specifically at drinking and/or for a short period of time. For large reserves or for a long period of time, you need something like a swimming pool, at least 10 tons (per 10 cubic meters).

What is the shelf life of bottled water?

Water is hydrogen oxide. It is made up of two carbon atoms and one oxygen atom. It is generally odorless and colorless in small quantities. In nature, its chemical composition includes various salts and gases. Water can play the role of a reactant, heat conductor and solvent.

Not a single production can do without it. But for each industry, special water is used, for example, distilled water is used for technical and medical needs, and bottled water is perfect for daily use at home. Mineral water is used for treatment and drinking. It does not have an expiration date, unlike the container in which it is stored.

Bottles made of plastic over time emit a variety of harmful chemical substances that negatively affect the taste and safety of the liquid.

It does not become poisoned, it will just become stale after a certain time, and as a result it will “bloom.”

But this applies to plastic and plastic containers, and in glass containers water can retain its taste much longer.

The difference between mineral water and drinking water

Regular bottled water is plain water drawn from underground or surface springs. After extraction, it undergoes purification. Then it is supplied with all the necessary useful micro- and macroelements. salts in such table water are no more than 1 g per liter. It can be used for cooking. It is bottled in containers of different volumes - from 0.33 to 19 liters.

Mineral water already contains salts and various trace elements. It is taken only from underground sources. It is used not only for drinking, but also for healing baths. It is often used in medical sanatoriums and dispensaries.

On store shelves you can find such water in glass containers from 0.33 to 0.5 liters or in plastic bottles from half a liter to two liters.

Bottled water production

Water is taken from artesian wells. Then it is cleaned, all impurities are removed from it. The next stage is filtering and sterilization. Chemicals and ultraviolet light are used for disinfection.

Before pouring into containers, it is enriched with silver ions. And only after that the water is sent for bottling and capping.

At most water production enterprises, everything is automated, and workers are involved in the process to a minimum.

Shelf life of bottled water

Despite the careful production, water bottled in plastic containers has an expiration date after opening. Often the manufacturer indicates 3 days, but this is provided that the water is kept in the refrigerator in a hermetically sealed bottle.

If a small container of water is placed in direct sunlight, the liquid will begin to absorb many different toxic substances, and as a result will be unsuitable for consumption.

Large containers with a volume of 19 liters can be stored hermetically sealed for up to six months. They are mainly ordered for enterprises.

Now such bottles are gaining popularity among residents of apartments and private houses, since drinking water from the tap is unsafe. But you need to store the bottle away from the sun and heating appliances.

Water will deteriorate under the influence of high temperature and will be unfit for consumption. There is also a risk of poisoning from toxic substances released from plastic.

Often, some manufacturers do not write in what conditions a water bottle should be stored after opening it. As a result, the buyer suffers.

Small bottles must be stored in the refrigerator after uncorking. The liquid does not lose its qualities for 4 days.

When bottled water expires, it can be boiled, but provided that it is not possible to purchase fresh liquid.

Larger bottles should be stored in a dark and cool place. If drinking water has already been boiled, this cannot be done a second time, since heavy metals accumulate in it in the form of insoluble sediments.

But mineral water placed in plastic containers can be stored from three months to one and a half years in a sealed form. The liquid is stored in a closed glass container for up to 2 years. Each type of this water has its own shelf life, which must be indicated on the label.

Plastic bottles with mineral water should be stored in a dark, cool and well-ventilated area. The opened container must be kept in the refrigerator for up to five days.

If you want water to be healthy for you, remember that it has its own shelf life and expiration date. It is not advisable to purchase water without specified spill dates and storage conditions. This may be hazardous to your health.

Does water have an expiration date?

Water is the main element of our body. To be healthy, a person needs not only to eat well, but also to drink fluids in the right amount.

Of course, the quality of water affects the general condition of the body. Perhaps some people still underestimate the importance of what they drink.

But still, most people understand that their health directly depends on the quality of the liquid they consume.

Water, which at first glance is always the same, exists in different forms. Some people are fond of bottled water, others like water from a filter or from a holy spring. In any case, everyone should know the expiration date of mineral water, how long to store bottled or boiled water.

Filtered water

People's concern for their health can explain the enormous popularity of various cleaning devices. Filters are installed in many homes, purifying not only drinking water, but also that used for washing.

However, there is still debate about the usefulness of water from under the filter, because along with harmful elements, a large percentage of substances necessary for the body can be retained.

In any case, it can be stored in plastic or glass bottles for no more than a day. The lack of chlorine that has been filtered out leads to bacterial growth. Reducing the temperature to 4 degrees can extend the period by a couple of days.

Boiled water

The easiest way to clean your home is by boiling. The liquid is brought to a temperature of 100 degrees, which leads to the death of harmful microorganisms. The disadvantage of this method, and a huge one, is that elements beneficial to health also die, so you cannot drink only boiled water. But sometimes this is the only way to protect yourself and your children from unwanted consequences.

Boiled water can always be prepared, especially since it is not recommended to store it. At room temperature for a maximum of a day, it doesn’t matter what it’s in: it could be a saucepan or a glass jar. The fact is that boiled water has a structure that easily absorbs various microelements, viruses and bacteria.

If there is an urgent need to extend the shelf life of such liquid, keep it in the refrigerator. At temperatures below 4 degrees, exposure to the environment slows down.

Blessed water

How does ordinary water turn into holy water? The priest performs a special procedure over the container or source - a prayer rite. There is a distinction between small consecration, which is carried out throughout the year, and great consecration, performed at Epiphany. Chemical tests examining holy water confirm that its structure improves after prayer.

Every year, for baptism, believers bring holy water from the church in various containers: plastic bottles, glass jars. It is believed to help heal the soul and body and can be kept at home for a whole year. Usually holy water is consumed in the morning before meals.

For storage, it is better to choose a cool, dark place, but not a refrigerator, and away from any food. It is better to store holy water in a glass container, covered with a napkin. Be sure to label the bottle you brought from church.

Under no circumstances should you drink from shared containers; this can spoil the holy water. Believers believe that holy water should be consumed with prayer and pure thoughts. In any case, this is a special liquid that requires special treatment.

When the supply runs out, add regular tap water and the entire liquid will turn into holy water.

Bottled water

Where does bottled water come from and how long can it be stored? It is usually mined from a local artesian well. Next, it is cleaned of various particles and impurities and passed through a complex system of filters. Then comes the process of disinfection with chemicals or ultraviolet light. Additionally, before being sent to storage tanks, water can be enriched with silver ions.

When all preparatory stages have been completed, the purified liquid enters the filling and capping line. In modern enterprises it is automated, and personnel contact with water is limited.

When buying bottled water in small plastic containers, you should remember that after opening, the expiration date of the liquid begins to count. Typically, the manufacturer can specify a period of up to three days.

But you need to understand that storing bottled water for so long is only possible in a closed container and in the refrigerator.

And, if water in plastic bottles is exposed to the sun, it will absorb harmful substances in a matter of hours.

As for bottled water, which is popular among office workers, it is usually bottled in 19-liter containers. It is extracted from an artesian spring, packaged and distributed to organizations and retail chains.

Water in sealed plastic bottles can be stored for a very long time - up to one and a half years.

But you need to understand that even water from a source will become unusable under the influence of high temperature and sunlight. Plastic is to blame: it can begin to release components hazardous to health.

Therefore, the replacement of reusable bottles is the responsibility of companies supplying water in 19-liter containers.

Mineral water

Mineral water is considered to be water that contains soluble salts, trace elements and other additives. There are two types of drinking water: table and medicinal. The first can be consumed every day, the second is prescribed by doctors for the prevention and treatment of certain diseases.

The stores have a large selection of bottled mineral water. It can be stored in a closed plastic container for up to one and a half years if all conditions specified by the manufacturer are met. In glass containers, water is good for up to two years from the date of bottling, unless otherwise indicated on the bottle.

Storage after opening the bottle

Some bottled water manufacturers do not write under what conditions and for how long an uncorked container can be stored, shifting the responsibility to consumers. Therefore, you should know that after opening a bottle of any water should be stored in the refrigerator. Depending on the contents, the following expiration dates exist:

For regular drinking water – up to four days
For mineral – up to a week

If drinking water has been left at home for more than the allotted period of time, it should be boiled before use. But do this only if absolutely necessary, otherwise just buy another bottle.

Important

Boiled water cannot be brought to 100 degrees again. It is considered very harmful to the body; heavy metals accumulate in it.
Bottled water comes in two types. The highest category includes those extracted from an artesian well. The one that is taken from the water supply and purified can only be classified in the first category.

There are still debates about what kind of water to drink. Adherents of one or another method of its extraction and purification are able to provide many arguments in favor of their choice.

You can filter it yourself at home, you can bring it from church or buy bottled in a store.

In any case, there are certain storage periods that must be observed in order for the consumption of clean water to benefit health.

Additional Information:

Unlike PET bottles, polycarbonate bottles are able to retain the taste of water specified by the manufacturer for a long time due to the fact that polycarbonate does not interact with water during heat treatment. It does not transfer its chemical elements to water, and at the same time – foreign taste and smell.

Today, polycarbonate is used all over the world as the safest material for bottled water in reusable containers; in addition, they are resistant to mechanical damage and scratches, and can easily undergo heat treatment, which is guaranteed to destroy microbes.

All water available for purchase can be divided into two large categories - drinking and mineral. The main differences between the categories are:

In most cases, it is recommended to use an opened bottle within 3-24 months. If it has been left open for more than a week, it is recommended to boil it before use. It is better to store bottles away from heating devices and direct sunlight, which will prevent flowering.

Source: https://emarkethelp.ru/srok-godnosti-distillirovannoj-vody-kak-i-skolko-p2/

For injection

Water for injection is a sterile liquid , which is characterized by a transparent color, tasteless and odorless.

It is obtained from drinking or purified water.

It is used in medicine for diluting drugs administered in the form of injections, infusions, as well as for dissolving powder drugs.

It is also used externally - for wetting dressings, washing wounds, etc.

Water for injections is packaged in ampoules or vials .

They can be made of glass or polymer fiber, opened and used under sterile conditions.

The shelf life of water for injection, bottled in ampoules, is 4 years .

Since this drug is a medicinal product, it cannot be used after the shelf life specified by the manufacturer has expired.

The reason for this is the reaction between the drug and container glass with the release of toxic products, microbial contamination of water.

This may affect the properties of the drug for which the drug is used as a solvent, and as a result, the patient’s health.

What is the best way to store water?

The structure of an aqueous solution is affected by the container in which it is stored. Experimentally, it was found that the best option is if the water is stored in

silver jug;
utensils made of steel or enamel;
glass

The greatest biological activity was observed with a combination of silver and light. Scientists have figured out how to store “living” water for drinking. The best option is glassware placed in diffused sunlight. If you add a silver coin or jewelry to it, the quality will improve significantly.

It is considered a bad option to keep the liquid in a plastic bottle or tanks. In synthetic containers, its composition changes significantly for the worse. If the bottle contains tap water, then its storage temperature should not be higher than +7-+10 C. Under such conditions, toxic substances are released less and the proliferation of microorganisms slows down. If the volume of water (19 liters) is not stored correctly, it is used for everyday needs or boiled.

It is considered a bad option to keep the liquid in a plastic bottle or tanks. In synthetic containers, its composition changes significantly for the worse. If the bottle contains tap water, then its storage temperature should not be higher than +7-+10 C. Under such conditions, toxic substances are released less and the proliferation of microorganisms slows down. If the volume of water (19 liters) is not stored correctly, it is used for everyday needs or boiled.

Conductivity of distilled water

The low electrical conductivity of distilled water (up to 5 µS/cm) is due to the absence of impurities (primarily salts), which significantly increases its resistance. One way to assess the quality of liquid purification is to measure this parameter. This procedure is called conductometry.

Absolutely pure DV (unlike any other) practically does not conduct electric current. If you use an ohmmeter to measure the specific conductivity of distilled water, its value will be significantly less than that of ordinary tap, river or other natural liquid. For example:

distilled: 6.0 +/-0.3;
tap: 33.0 +/-3.3;
melted water supply:21.0 +/-2.0;
drinking bottled: 20.0 +/-2.2;
drinking melt: 19.0 +/-0.3;

The unit of measurement for the electrical conductivity of distilled water is Siemens (cM), the reciprocal of Ohm (1 Ohm = -1 cM).

Shelf life of water depending on the type of container

Water containers can be made of polyethylene terephthalate (PET) or polycarbonate (PC). PET bottles are not intended for repeated use; they transmit ultraviolet rays well, due to which the properties of water deteriorate. Also, such a container cannot be heated, since during this process harmful substances begin to form. In addition, water gradually begins to interact with plastic and after a long stay in a PET container, the liquid may contain plastic particles. In such a container, water can be stored for approximately 12 months, but this is provided that the bottle is not opened during this time, and the storage conditions are not violated.

PC bottles are reusable. This material has high strength, does not interact with water and is able to withstand high temperatures. When sealed, water in a polycarbonate bottle can be stored for up to 24 months.

Most often, of course, you can find water in PET containers on store shelves. When consuming it, you must take into account the expiration date of both the closed and open bottle.

Bottled water

It is often considered drinkable.

Bottled water can be stored for three, six, twelve and twenty-four months. These terms depend on the purpose of the liquid, the quality of the container and the quantitative composition of preservatives.

Water itself does not spoil for a very long period, but its taste characteristics depend on the type of container. For example, the plastic used to make bottles has a limited shelf life.

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When the period of use prescribed by the manufacturer expires, substances begin to be released from the plastic that affect the taste of the contents and the human body.

Consumers often ask the question: how long can you keep water in an open container? It is better to keep it in the refrigerator and use it within 3-5 days. An exact description of the terms of use of water after opening is indicated on the container.

This water is widely used both in everyday life and in production, but in order to ensure that it does not lose its properties, you must follow all the recommendations provided.

Watch the video in which a user demonstrates a way to obtain distilled water at home:

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Shelf life depending on water quality

Manufacturers of bottled water must obtain quality certificates for their product. Water can be extracted from an artesian well or bottled from a tap, but at the same time it is filtered and saturated with mineral elements. You need to pay attention to this when purchasing liquid.

If the manufacturer is one hundred percent confident in the quality of his water, then he can obtain a certificate of conformity on a voluntary basis. If the liquid has passed the appropriate certification procedure, then the shelf life depends on the type and purpose of the water. For example, bottled mineral water can be stored even longer than a year (24 months). The exact expiration date must be indicated on the label.

Regular drinking water can be stored in a sealed bottle for up to 24 months, provided that storage rules are followed. If this period has expired, then you should not drink the water, as this is fraught with negative consequences for health.

Baby water

Children's DV is a specialized type of water. It has low mineralization and is perfect for pregnant and nursing mothers.

This product is also allowed to be given to small children from the first days of life. This water has a beneficial effect on a growing organism because it meets all the requirements of pediatricians.

Such water must be stored in strict accordance with the manufacturers' recommendations. All these terms are indicated on the packaging.

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How long can open water be stored?

If water can usually be stored in a closed bottle for up to a year or two, then for an open container this period is much shorter. As a rule, such water should be consumed within a week or even several days, since pathogenic bacteria can develop in unsealed containers.

Store water in a plastic bottle out of direct sunlight, at a temperature of +5 to +20℃. It is better to prefer buying water in glass containers, which do not interact with water and do not poison it with toxic elements, like plastic containers.

Tap water

The tap water we use every day goes through several stages of purification. But, when settling, microbes accumulate in it and white flakes may appear.

Optimal storage conditions for tap water

Store in a plastic container in the refrigerator for up to 3 days.
Store in glass bottles in the refrigerator for up to 7 days.

First, tap water is left to stand for 2 hours with the lid open so that the chlorine evaporates. Both bottled and tap water can be boiled if they are nearing the end of their shelf life. But, when boiling, both pathogenic and beneficial bacteria die, and the salts in the liquid precipitate.

The shelf life of boiled water is 12 hours at room temperature, not higher than +25°C.

GOST 6709-72 distilled water: quality requirements. press!

Water is the most common substance in the natural environment. It forms seas, oceans, and is the main component of the cells of all living organisms.

Distilled water is a liquid that has been purified from inorganic and organic substances. It must be emphasized that not all water evaporated and collected in the formation of condensate is distilled.

After purification, water is used for treatment, and its quality affects human health. Therefore, the physical and chemical properties of this product are set out in the relevant documentation - GOST 6709-72. In accordance with this requirement, the pH value of such water is 5.4-6.6. And the mass concentration of chlorides (C1), mg/dm3, is not more than 10.

Manufacturing features and characteristics

They say about this water that it is a pure chemical reagent. It is obtained technically by distilling natural water in evaporation equipment - a distiller.

Then it undergoes several stages of purification, and the type of processing depends on its subsequent purpose.

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Distillers are available in every pharmacy and medical institution, and the production of a large number of medicines is based on the use of distilled water.

Good to know: in nature there is only one water, the chemical composition of which is as close as possible to purified water - this is melted water from icy mountain tops.

Distilled water (DV) is distinguished from other liquids by the following characteristics:

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Pharmaceuticals

In pharmaceutical practice, purified water is an indispensable product. When carrying out chemical reactions, it does not react with other reagents, which means that the purity of the process being performed is not compromised.

This water is used as an injection solution, but for this it is subjected to secondary distillation. Water that has undergone double treatment is called pyrogen-free.

Application time

This period varies depending on the type of water. In medicine, according to the orders of the Ministry of Health, the same deadlines are provided. For sterilized and unsterilized water, different ones are installed.

Special conditions of use are provided for laboratory purified water and battery fluid.

In medicine, according to SanPiN

For this type of composition, only a 3-day period of use is provided . It is fixed in clause 7.3. Order of the Ministry of Health dated October 21, 1997, number 309.

It contains instructions on the possibility of using purified water only in freshly prepared form. Exceeding the 3-day period of its use is unacceptable.

If purified water is intended for injection, then its shelf life is even shorter. It should not exceed 24 hours.

Sterilized

It is mentioned in the Order of the Ministry of Health dated July 16, 1997 under number 214.

The duration of use of such solutions varies:

sterile suspensions are stored from 7 days to a year (depending on the type of drug);
mixtures for eye drops can be used within 2-90 days;
medicinal mixtures for newborns (consumed orally) - from 5 to 30 days.

External solutions containing sterilized water can be stored from 2 days to 2 years.

Unsterilized

Mixtures containing glucose are stored for only one day . Infusions and decoctions with sterilized water are stored for no more than 2 days, and emulsions with suspensions - no more than 3.

Solutions for eye drops can be used within 2 days. Injection solutions are also stored for no more than 2 days.

For most medications containing non-sterile water, a shelf life of no more than 10 days is provided.

Laboratory, according to GOST

This type of H2O is recommended to be used in the laboratory for its intended purpose immediately, within 24 hours . This requirement is recorded in GOST R 52501-2005. It concerns liquids used for analysis in laboratories.

GOST R 52501-2005 allows the use of laboratory water, if it is purified to the 2nd degree, for a longer time. But the period of use of such compositions should not be more than 3 days.

The requirements of clause 7.3 apply here. Order of the Ministry of Health dated October 21, 1997, number 309.

For batteries

GOST 6709-72 does not contain instructions on the storage time of such compositions. If stored properly, their shelf life is unlimited.

Some manufacturers may install it. They usually indicate that such formulations can be used for 5 years . But at the same time, GOST still does not set specific deadlines.

Shelf life of water depending on the type of container

Most often, of course, you can find water in PET containers on store shelves. When consuming it, you must take into account the expiration date of both the closed and open bottle.

Shelf life depending on water quality

Scope of application of distilled water

In industry, DV is used to adjust the density of electrolytes, dilute concentrates and chemical reagents, manufacture chemical liquids (antifreeze, windshield wipers, etc.), in the production of powder paints, various mixtures and in other technological processes. Most often, DVs are purchased for household needs to fill aquariums and replenish the containers of steam irons and steamers. Motorists need it to top up alkaline batteries.

In our company you can order high-quality distilled water obtained by reverse osmosis. The products meet strict quality requirements. Delivery of the ordered batch to the recipient's address is possible.

Contact our managers for more information and to place an order.

How long can open water be stored?

Saving rules

There are strict requirements for the storage of medical distilled water. Distilled water for batteries must also be stored only in suitable containers, but the requirements in this case are less stringent.

At home

GOST 6709-72 prescribes storing such compounds in bottles made of polyethylene and fluoroplastic. Also, this GOST allows storing distilled compounds in other containers, but provided that the water quality in them is stable.

Distilled water should always be stored in tightly closed containers. It is permissible to store such solutions at a temperature range of 5-30C.

Some manufacturers allow the composition to be stored in the range from -10C to +40C . The air humidity should not be increased. 40-50% is enough. The container should be in a dark and cool place where sunlight does not penetrate.

In laboratories

This type of purified water can only be stored under special conditions.

Distilled compounds are allowed to be stored in special rooms (aseptic blocks). Water should only be in containers that do not change its properties.

Typically, containers made of polyethylene and fluoroplastic are used . Solutions can be stored at a temperature of 5-100C, as prescribed in clause 7.3. Order of the Ministry of Health number 309.

The laboratory distilled mixture can only be kept in closed containers.

Purified water can be placed in tightly closed glass containers. But this is an exception to the rule. In this case, such containers must be thoroughly sterilized. It must indicate that this is purified water. A number is also stamped on the container.

In laboratories, purified solutions are kept in dark places where light does not penetrate. Air humidity should be average. Its high value is not allowed indoors.

Everything you would like to know about distilled water, its properties and uses is here.

Conditions for storing distilled water at home

Storing distilled water at home is not particularly difficult: it is poured into plastic bottles, hermetically sealed and stored in a cool, dark place. This bottled water can be used to refill ionizers, irons, steam generators, reduce electrolyte concentration or wash various pipes without any restrictions. Even with long-term storage, the hardness index does not increase.

In our company you can purchase inexpensive distilled water with delivery to the recipient's address. When ordering several bottles, favorable discounts apply. Call the manager to find out details of the provision of services and place an order.

Water, which at first glance is always the same, exists in different forms. Some people are fond of bottled water, others like water from a filter or from a holy spring. In any case, everyone should know the expiration date of mineral water, how long to store bottled or boiled water.

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Is there a storage period?

The water is almost completely purified from salts and impurities.
It also contains no organic matter. After purification, such liquid must be stored under proper conditions . This is especially true for solutions used in medicine.

This water has a limited time of use. During long-term storage, the solution will begin to acquire a rotten smell and taste.

The establishment of a limited period of application is also due to external factors. Manufacturers assume that the compound may not be stored correctly. If it is in an unsuitable container with access to air, it will quickly lose its properties.

For this reason, manufacturers always set a short storage period for medical suspensions . Connections used for other purposes are often subject to a longer period of use.