The problem with the water in the kettle, the water in the kettle can last for a few days

The coating is on the inside of the glass, the floating thing is produced when boiling water, there is no harm, everyone is like this, if you are not at ease, add freshly boiled water to the cup, then add white vinegar and shake it, let it stand for a while, according to the thickness of the scale to set the time and the amount of white vinegar is very effective, but if you are still afraid, you can do an experiment, you use tap water to boil there must be, if you use mineral water to boil there is none. Oh.

Those things are calcium carbonate, commonly known as limescale, and they are not harmful to the body in small amounts.

I think it's better to change it to another one, and it's not good for the general kettle.

See if it's mercury, and if it's mercury, don't drink it.

It should not be, maybe it is the precipitation crystallization of GA and ME ions in water, and the silver-colored crystalline substances may be calcium carbonate and magnesium carbonate.

If you are using tap water may be the cause of bleaching powder, you can change the mineral water to try first...

No, because the kettle is plating with mercury on the outside. If these are still present after multiple cleanings, consider whether they are mineral deposits after water boiling.

No, you can't use it a few more times, you can soak it in hot water a few more times.

In order to keep warm and prevent heat loss, the kettle should be vacuumed to prevent heat conduction and convection loss, and a layer of mirror should be plated to prevent heat radiation.

The process of mirror plating is the same as making ordinary mirrors, and in the past, the "silver mirror reaction" used silver, but now it is changed to aluminum.

You find that there is silver in the kettle water, and that is aluminum, and it is not silver, let alone mercury. A small amount of aluminum is very harmful to the human body. A new kettle can be cleaned a few more times, so don't worry.

This is not a silver coating, it is an impurity in the water, of course it is unhygienic to drink it in the stomach, if it is a mercury coating, it is even worse, and the chemicals are even more unhygienic when dissolved in water. Therefore, it is recommended to change the bottle bladder, which is the appearance of 12 pieces!

The coating is on the inside of the glass and will not come out. The floating things are produced when boiling water, and there is no harm, who doesn't have that kind of water. You just need to make sure that the water bottle is brushed clean before use, and it is definitely not a coating.

Add freshly boiled water to the cup first, then add the white vinegar (the mixture is higher than the limescale). Shake it and let it sit for about an hour (depending on the thickness of the limescale and the amount of white vinegar). It's effective, you try it!

It is simple silver, try it with hot water, see if you can wash it away, silver is a heavy metal, after entering the human body by mistake, it will lead to the denaturation of human proteins, harmful to the human body, and the ancient principle of suicide by swallowing gold, please do not drink it, in case it doesn't work, go to change it, obviously the quality is not up to par.

The water in the kettle should not be drunk again if it is left for three days.

Because it is left for too long, nitrite will be produced after the bacteria multiply in large quantities, and if the human body ingests too much nitrite, it will cause symptoms such as hypoxia and nausea, and it is easy to induce cancer, of course, the premise is that it is ingested in large quantities. If you accidentally drink it once in a while, it will not cause great harm, and the accumulation of toxins will affect the body. In addition, do not drink the water that has been boiled repeatedly, it also contains a lot of nitrite.

The new thermos should be cleaned before use. The inside of the new kettle has residue and smell, so the new kettle cannot be used at first and needs to be cleaned before use.

Here's how to clean it:

1. Pour a spoonful of vinegar into the thermos first, and then fill about 80% of the hot water (50-70). Vinegar has a disinfecting effect.

2. Then shake the thermos flask, shake it more than a dozen times, and then pour out the water. The first wash water is dirty.

Then fill it with 50-70 degrees of water, which is also about 80%, and then shake it, to produce the effect of movement, so that the molecules will move strongly, so that the dirt inside can also be cleaned, so that it is poured and cleaned several times.

3. After the vinegar smell is removed, then fill the thermos flask with water, and then leave it overnight until the next day, after pouring out the water, it can be used after two more times.

4. When pouring water, do not use the faucet to avoid splashing the water on the inner tank, and when using it regularly, do not use hot water for a while and ice water for a while. It's going to shorten its lifespan.

It is not allowed to drink, it is recommended to pour it out. The most convenient way is to use Coca-Cola, pour it into it and shake it, and then rinse it with water. It's actually very acidic.

It should not be possible to clean it repeatedly so that not only does it smell but all kinds of things inside are not clean.

No, the kettle must be washed.

A standard thermos bottle is generally 2 liters (i.e. 2000 ml).

The hot water bottle is divided into two types, the small water bottle is about two liters, and the large water bottle is about four liters. The cork of the thermos is made of cork, which is not easy to conduct heat, which prevents conduction as much as possible.

There is a vacuum in the middle of the kettle to try to prevent the occurrence of air convection; There is also a silver-white plating on the bottle of the thermos, which can reflect the heat into the bottle without radiating out.

Insulation principle:

The function of the thermos is to maintain the temperature of the hot water in the bottle, cut off the heat exchange between the inside of the bottle and the outside of the bottle, so that the "heat" in the bottle can not get out, and the "cold" outside the bottle can not come in. If you put a popsicle in a thermos, the "heat" on the outside will not easily escape into the bottle, and the popsicle will not melt easily.

Therefore, it is scientific to call a thermos flask a thermos flask, because it can keep both "hot" and "cold" in spring. The ability of a thermos to keep warm is determined by the structural characteristics of the thermos tank. It turned out that the thermos bile consisted of two thin layers of glass shell, between which air was extracted and a thin layer of silver was plated on one side of the bottle.

The thermos bile has a much thinner mouth than its "body" part, which can be corked. It is this structure that makes the thermos a thermos that is "hot in the heart and cold on the outside".

In the process of boiling water, we found that the water at the bottom of the pot first began to boil. Since water is a poor conductor of heat, when the water temperature in the beaker is lower, the temperature difference between the upper and lower layers is larger, the convection movement is more violent, and the hot water rises to the top, forcing the colder water to be pushed to the bottom. Then, the colder water gets hotter and starts to rise as well.

And so on and so forth. The bubbles in the water in the kettle change from small to large from top to bottom. Before the water boils, fewer bubbles appear at the bottom and rise, but gradually disappear at the top. As the temperature drops as the bubbles leave the bottom of the container, the bubbles shrink in size, and because the bubbles themselves are not large, a large number of bubbles rise to the surface of the water and disappear.

The thermos cup is developed from the thermos flask, and the insulation principle is the same as the thermos flask, and the bottle is turned into a cup in order to be easy to carry. In the past, hot water bottles were used to store hot water, and hot water bottles were also called hot water bottles, water bottles, and thermos bottles, and the shell was made of plastic, iron sheet, and bamboo, and the inside was equipped with a double-glazed wall, and the middle layer of glass was silver-plated, and the bottle mouth was closed with a cork. There are three methods of heat transfer:

Heat conduction, heat convection, and heat radiation. The thermos bile has a double-glazed structure, which can be vacuumed from the middle to reduce heat conduction. The glass liner can be plugged with cork that does not transfer heat easily, and hot water can be poured to reduce heat convection.

Silver is plated between the double glazing of the bottle to reflect the heat radiation inside the bottle. Don't underestimate the small thermos. Take advantage of the three ways of heat transfer to maximize the heat preservation effect.

The original thermos cup bile was the inner wall of a small thermos flask, and just for the convenience of drinking, the inner wall mouth became open. With the development of society, fragile glass-lined thermos cups have been rare. There are more thermos cups made of stainless steel, but the principle of heat preservation is the same.

The stainless steel thermos cup is a double-layer structure, welded between the inner wall and the two layers of stainless steel of the cup, and is pumped out with a vacuum, and the vacuum does not transfer heat. The rotating stopper of the thermos cup has good sealing performance and very little heat loss by convection. Plating copper or silver between the inner wall and the two layers of stainless steel in the cup can effectively reduce the heat lost by radioactivity.

The stainless steel thermos mug is easy to carry, durable, and easy to clean, and has gradually become a new favorite in the market.

The thermal water bottle can keep warm mainly because of the structural characteristics of the thermos bile. Upon closer inspection, it was found that the thermos bile consisted of two thin glass shells with a vacuum between them, and the inside of the bottle was plated with a thin layer of silver, and the thermos bile was thinner than his body, with a bottle mouth that could be inserted into the cork. This structure is that the thermos bottle forms a thermos that is "hot in the heart and cold on the outside".

After pouring boiling water into the thermos, the heat of the water cannot be transferred in the usual way due to the structure of the thermos. Blocking the thermal convection, the neck of the bottle is elongated, blocked on the cork, blocking the only channel of thermal convection, blocking the heat conduction, the heat conduction of the air is not as good as that of metal objects, but the heat in the bottle is still the medium of vacuum heat conduction in the middle of the glass shell 3354 - the air becomes very thin, and the channel of heat conduction is also cut off. No thermal radiation.

In winter, under the sun's rays, the radiation of the sun's rays is warmer than ours. The reflection of the thinner silver layer of the thermos flask's bile causes the radiation heat to block the inside of the bottle wall, thus blocking the path of thermal radiation.

This is going to talk about the role of heat transfer, the kind of silver-plated glass he took, its heat transfer performance is very poor, so it plays a role in heat preservation, and then the bottle mouth has this cork, the thermal conductivity of the cork is very poor, so it can also strengthen the heat preservation.

Cork stoppers on the top of the bottle to prevent the convection of hot and cold air; The gap between the double-layer bottle sleeves is pumped into a vacuum, which solves the heat conduction; A thin layer of silver is applied to the bottle to make it a mirror that reflects light and heat, thus using the silver layer to block out the heat radiation. In this way, the heat is not dissipated and plays a role in heat insulation.

The main reason is that the inner tank of the thermos bottle generally has some mercury coating, and such a coating can be well insulated.

The hot water kettle can be kept warm because the inner tank of the hot water kettle uses a special material, which can preserve the heat, let the heat dissipate a little slower, and dissipate heat slowly, so it plays a role in heat preservation.

Fake, the water in my warm pot is often cooled, but the next time I pour hot water, it's still very warm, and there is no basis for this kind of statement.

No, although the kettle can keep the temperature of the water warm, the temperature will definitely drop if it is not used for a long time. However, the drop in temperature does not affect the effect of use.

It's not true, there's no scientific basis for it, and if it really doesn't keep warm, then no one will buy this kind of thing anymore.

This phenomenon may occur, the process of hot water to cold water in the hot kettle will cause internal air pressure changes, and the pressure will be greater to the thermos stopper under the action of external atmospheric pressure, which is prone to deformation and affect the sealing, but this process is relatively slow, and the impact on the old kettle is relatively large, and the new kettle is basically not affected.