Which is cleaner, the tap water filtered or the pure natural Chen Jun water bought in the supermarke

I think the supermarket has bought pure water. After the tap water is filtered, there are still some magazines. After all, our own filtration treatment is still not as good as the pure water produced in the factory company. This is my personal opinion.

As summer temperatures continue to rise, so does the demand for water. I usually have the experience of going to the supermarket to buy water. At this time, you will find that there are more and more types of mineral water on the shelves, and they are also uneven, such as Nongfu Spring, Cestbon Baisui Mountain and other brands of mineral water, **are relatively high, and pure water such as Master Kong Ice Dew** is basically about one dollar.

So, since it's all drinking water, why is there such a big gap? Is high really good quality?

In fact, the difference is mainly due to the problem of product packaging. The main mineral water we commonly see on the market is groundwater or direct tap water filtration. Most of the mineral water that is on the high side of the mine uses groundwater, and the cheap water is basically filtered from tap water.

Now a ton of water is the first yuan, a ton of tap water can be filled with more than 1,800 bottled water, if a bottle is sold for a dollar, the profit is more than 400 times that of tap water, even if there are other costs, the profit of a bottle of mineral water is also very objective. If the selling price is a little higher, the profit will be multiplied several times.

There are these differences between the types of water sold in supermarkets.

The so-called pure water refers to its pure water quality, does not contain any harmful substances and bacteria, such as organic pollutants, inorganic salts, any additives and all kinds of impurities, effectively avoids the invasion of various germs into the human body, its advantage is that it can effectively and safely replenish water to the human body, has a strong solubility, so it has a strong affinity with human cells, and has the effect of promoting metabolism.

It is water produced after advanced treatment using ion exchange method, reverse osmosis method, microfiltration and other appropriate physical processing methods. Under normal circumstances, only 50%-75% of the source water is used in the production process of pure water, that is to say, 1 kilogram of tap water or groundwater can only produce about kilograms of pure water, and the remaining kilograms of water cannot be used as drinking water, but can only be used for other purposes.

The mineral elements of tap water can promote the growth of substances in tea, so it is more turbid and has more impurities; The pure water is soaked out of the water that has been reprocessed and filtered by the uncle of the water plant worker.

Differentiation method: pure water has no ions and no impurities, and has a good taste. Tap water will have various ions and residual chlorine flavors, and the taste varies according to the quality of the water.

At present, in addition to tap water; There are also types of water, such as purified water, mineral water, and mineral water, and today I will introduce these types of water to you.

Mineral water: It is a pure natural mineral water that is mined underground.

Purified water: on the basis of mineral water (tap water or other water); Water made after several stages of filtration, disinfection, and processing is called purified water.

Mineral water: on the basis of purified water; When some minerals are added, it is called mineral water.

Tap water: Tap water refers to the water produced by the tap water treatment plant after purification and disinfection that meets the national drinking water standards for people's life and production. It mainly draws rivers, lakes, groundwater and surface water through the water intake pumping station of the water plant.

After precipitation, disinfection, filtration and other processes, it is finally transported to various users through the water distribution pumping station.

After being treated by the waterworks in accordance with the "National Sanitary Standards for Drinking Water", the pumps are supplied to users through the water transmission and distribution pipelines.

To sum up: mineral water is the best water, it contains certain minerals necessary for the human body. Mineral water, on the other hand, is added later; The human body should not be absorbed. Not to mention pure water, which filters everything out of the water and has no nutrients at all.

Hello.

1. The basic concept of daily drinking water.

1.Tap water is natural water processed by the waterworks, and then chlorinated and disinfected for domestic drinking after chlorination or purification. Untreated source water is not tap water and is not drinkable.

2.Purified drinking water is water that meets the sanitary standards of drinking water as raw material, prepared by electrodialysis, ion exchange, distillation and other appropriate processing methods, sealed in a container and does not contain any additives and can be directly consumed.

3.Mineral water is unpolluted underground mineral water that springs naturally from deep underground or is artificially exposed; Contains a certain amount of mineral salts, trace elements or carbon dioxide gas; Under normal circumstances, its chemical composition, flow rate, water temperature and other dynamics are relatively stable within the natural fluctuation range.

2. The difference between tap water, purified water, and mineral water.

The difference between the three can be basically observed from the definition, and the difference between the three can be elaborated from three aspects.

1.The difference formed.

Tap water is made of natural water through the water pipeline (or through the first-class pump room to lift water and pressurize) into the water plant, before entering the water purification structure, add coagulant - aluminum sulfate or polyaluminum chloride, add lime to improve the alkalinity of the raw water and pre-chlorination (depending on the quality of the raw water), enter the grid reaction pool coagulation to form alum flowers, flow through the honeycomb inclined pipe sedimentation tank for precipitation separation, and then filter through the air-water backwash filter, after entering the clear water pool, chlorine and disinfection, stay for a certain period of time and then pass through the secondary pump room pressurized and transported to the water supply network. For domestic drinking and production use.

Pure water is made of water that meets the sanitary standards of drinking water, and adopts a variety of processes to remove most of the harmful, toxic and odorous substances such as heavy metals, trihalomethanes, organic matter, radioactive substances, and microorganisms in the water, so as to eliminate the direct and potential harm to human health, and then sell them in the form of barrels for people to drink.

Thank you for adopting!!

Bottled water includes mineral water, which is purified water, mineral water, and mineral water (artificially added with minerals from purified water).

The composition is different:

1. There are many varieties of bottled water on the market, including pure water, mountain spring water, mineral water, mineralized water, activated water, ionized water, etc. Due to different water sources and different production processes, the types and contents of trace elements contained in different types of bottled water are also very different. Some bottled water sources are natural groundwater, such as:

mineral and mountain springs; Others are city tap water, which is processed into bottled water, such as purified, distilled and ionized water.

2. China's national standard for drinking natural mineral water stipulates that drinking natural mineral water is unpolluted underground mineral water that naturally gushes out of the depths of the underground or has been artificially revealed; Contains a certain amount of mineral salts, trace elements and carbon dioxide gas. Taking metasilicic acid, lithium and strontium, which have a large content of natural mineral water in China, as an example, these elements have similar biological effects to calcium and magnesium, and can promote the growth and development of bones and teeth.

The large bottles of water on the water dispenser are made in your local area or in the vicinity, and they just pass through some of the fields.

There are many problems with bacteria exceeding the standard and many problems certified by the party organization.

The small bottle of water in the supermarket is different, and every time it appears, it is sold all over the country, and it is basically uniformly processed.

Therefore, small bottles of mineral water are safer and more reliable, such as Wahaha, Nongfu Spring, and Kunlun Shanshui.

The bottled water of the water dispenser has less mineral content;

Small bottles of mineral water - 1 yuan bottle, less mineral content, slightly more expensive, more mineral content.

There are two classifications of water dispenser water and small bottles of water, one is pure water, the other is mineral water, and pure water is filtered and deepened, and many of them are processed by groundwater.

The water in the mining area is mainly water that naturally contains various trace elements, and the deepened mineral water is more expensive, so most of the barrels are actually pure water, and there are also indiscriminate fillers.

The first-line brand of the vial is the real thing.

One is a large package and the other is a small package.

One is carryable, and the other is not.

One is drunk from a cup and the other is drunk directly.

One for home delivery, one for self-purchase and pick-up.

One bottle discarded, one bottle**.

Drink tea without you, with a comparison of barrels and small bottles, you will know right away,

Buckets of bottled water are recycled.

Bottles of small bottles of mineral water are disposable.

As for the water inside, it's all the same.

There is no difference, but I think it is better to boil it in a water dispenser and drink it again.

Personally, I think the small bottle of mineral water is relatively clean.

1. Different capacities.

2. Different brands.

3. Different purchase channels.

4. Different tastes.

5. ** Different...

There should be no difference, except for the capacity.

There is no difference·· You're thinking too much.

A 5 yuan bucket and a 2 yuan bottle.

Maybe the taste is different, and the minerals inside are different.

One big and one small taste is different ** different.

There is a difference in size, and there is a slight difference in taste.

It's all about the same, and no one can guarantee which one is better.

There are these differences between the types of water sold in supermarkets.

The difference between tap water and purified water is as follows:

Tap water refers to the water produced by the tap water treatment plant after purification and disinfection that meets the corresponding standards for people's life and production. Domestic water is mainly absorbed from rivers, lakes, groundwater and surface water through the water intake pumping station of the water plant, which is treated by the waterworks in accordance with the relevant health standards for domestic drinking water, through precipitation, disinfection, filtration and other technological processes, and finally transported to various users through the water distribution pumping station. First of all, the water source must be pumped from the rivers and lakes to the water plant (the water intake is different in different regions, and the water source directly affects the quality of drinking water in an area); Then after coagulation, sedimentation, filtration, sent to the clear water pool and disinfection, the water pump is fed into the tap water pipeline at high pressure, and the main pipeline generally uses prestressed concrete pipes, steel pipes, PE pipes, ductile iron pipes and other pipes; Eventually, it is shunted to the user's faucet.

The whole process has to go through multiple water quality tests, and in some places, it has to go through secondary pressurization and secondary disinfection before entering the user's home.

Purified water refers to Ho without impurities, referred to as clean water or pure water, which is pure, clean, and does not contain impurities or bacteria, such as organic pollutants, inorganic salts, any additives and various impurities, and is the raw water that meets the sanitary standards of drinking water. It is prepared by electrodialyzer method, ion exchanger method, reverse osmosis method, distillation method and other appropriate processing methods, sealed in a container, and does not contain any additives, colorless and transparent, and can be drunk directly. There are mainly pure water, mineral water, spring water and natural water, mineral water, etc., because mineral water, spring water, etc. are limited by resources, and pure water is the use of water in line with the national drinking water standard of the city water supply system through a certain production process for production, so it effectively avoids all kinds of germs to invade the human body, can effectively and safely replenish water to the human body, has a strong solubility, so it has a strong affinity with human cells, and has the effect of promoting metabolism.

In April 1998, the State Bureau of Quality and Technical Supervision issued GB173223 1998 "Bottled Drinking Pure Water" and GB17324 1998 "Hygienic Standard for Bottled Drinking Pure Water". In these two standards, there are 4 sensory indicators, 4 physical and chemical indicators, and 11 health indicators.

There are these differences between the types of water sold in supermarkets.

The purified water was clean, the mineral water was a bit dirty, the tap water was the dirtiest.

The production method and shelf life are different.

【Mineral water】

Mineral water is from the ground.

Unpolluted versions of underground mineral water that emerge naturally from the depths or are artificially revealed; Contains a certain amount of mineral salts, trace elements or carbon dioxide gas; Under normal circumstances, its chemical composition, flow rate, water temperature and other dynamics are relatively stable within the natural fluctuation range. Mineral water is formed by circulation in the deep stratum and contains minerals and limited indicators specified in national standards.

Generally, mineral water has a shelf life, which is one year for bottles and one month for barrels. However, the mineral water after opening is not guaranteed by the above period and should be drunk as soon as possible. Generally, there are about 5000 bacteria (not pathogenic bacteria) in one cubic meter of air, and the bacteria will multiply and grow for a long time and affect the hygiene of drinking water, so the water after opening should be drunk as soon as possible and should not be left for a long time.

Boiled water] Boiled water, also known as cool boiled water, is the most alkaline water that people drink in ordinary life. It is light and tasteless, extremely ordinary, but it has a very important conditioning effect on the physiological mechanism of the human body. Drinking a glass of warm boiled water on an empty stomach in the morning is good for the body.

Plain water should not be consumed after more than three days. If water is stored for too long, it can become infected by bacteria and produce nitrite.

Put the live clams in the water with a little edible alkali, soak them for half an hour, and then take them out and put them in clean water, and so on three times, basically all the sediment in the body of the clams can be removed.

The trick of spitting sand from clams:

1. Soak in sesame oil and salt water: if time permits.

If you use sesame oil and salt to soak clams, you can use this method to pay attention to one point, that is, the temperature of the water, the water is best around 20 degrees of water, if you directly use the tap water released from the faucet, the water temperature is low, and the clams do not like to open their mouths. Soak in this way for 2-3 hours, and the clams will spit out a lot of sediment.

2. Shake back and forth: Find a larger, basin or box with a lid, put the shell in it, pour in a little water, and then shake the container back and forth with your hands, the strength is moderate, not too large, otherwise the shell of the clam will be broken, and the appearance is not good. After shaking for two minutes, the clam will faint and spit out a lot of sediment, wash it with water and shake it again, and repeat it three times.

3. Blanching: This method is the most direct and the most complete way to remove the sediment in the clams, but if you use clams to make soup, it is not recommended to use this method, and the umami will pass. You can use it if you fry clams.

Put the clams in a pot of boiling water, cover the pot and remove after a minute. Then rinse with water, wash the mud in the clams thoroughly, drain the water and set aside. In this way, the sediment can be removed without reservation.

A friend suggested that I use the water that has been blanched to cool the clams, the sand will sink to the bottom, and take the water from the top and wash it again, so as to maintain the umami of the clams.