Tips for purchasing water thermos cup: the five daily drinks of thermos cup can’t hold

. In autumn and winter, the weather is cold, and as the temperature drops, the weather becomes drier and drier. It’s our common choice to buy a thermos cup to drink water. There are many kinds of thermos cups on the market, and the quality also varies greatly. Today, I’d like to share some tips on how to buy thermos cups. In addition, I’d like to talk about four kinds of tea that are not suitable for thermos cups. Next, let’s take a look at the related knowledge about the thermos cup.

Measure the strength of heat preservation

1. Fill it with hot water and cover it. After five minutes, touch the outside or bottom of the cup. If you feel warm, it means that the heat preservation effect is not good enough.

2. Look at the tightness of the thermos cup

. Fill it with water, cover it tightly, put it upside down for a few minutes or throw it with force. If the water will seep out, it means it is not sealed enough.

3. Is the material of the thermos cup safe?

even the thermos cup will use plastic materials to some extent. To judge whether it is safe, you can pass through & lt; Smell & quot; To identify. If the thermos cup is made of food grade plastic, it has no taste, smooth surface, no burr and long service life.

4. Identification of stainless steel material

for stainless steel insulation Cup, the quality of material is very important. There are many specifications of stainless steel. If it is 18 / 8, it means that the stainless steel contains 18% chromium and 8% nickel. Only the materials that meet this standard are green products.

The thermos cup can’t hold

1. It’s not suitable to hold acidic drinks.

stainless steel has high melting point, so it won’t release harmful substances because of high temperature. But stainless steel is most afraid of strong acid. If it is loaded with strong acid drinks for a long time, it may cause damage to internal organs.

2. Not suitable for milk

some people will put hot milk in a thermos cup, but this practice will make the microorganisms in the milk multiply rapidly in the appropriate environment, causing diarrhea and abdominal pain. Because the acidic substances of milk in the high temperature environment will make the inner wall of the mug have chemical reaction, affecting human health.

3. It is not suitable to make tea.

tea contains a lot of tannic acid, theophylline and vitamins. It is only suitable for brewing with 80 degree water. And the thermos will let tea soak in high temperature, constant temperature water for a long time, just like boiling with warm fire. Experts say that tea is not suitable for long-term soaking, because it may release heavy metals and the vitamins in tea will be destroyed.

4. It’s not suitable to hold soybean milk

. Soybean milk is the first choice for many people’s breakfast, but it’s suitable for office workers who are in a hurry to go to work to put in a thermos cup until they arrive at the company? The thermos cup is a culture dish for bacteria. When it meets with the rancidity of soybean milk, it will deteriorate and dissolve the toxic substances in soybean milk, which is harmful to health. All of them can not be put into the thermos cup.

5. It is not suitable to hold Chinese medicine

. Some people also like to soak Chinese medicine in thermos bottle for easy carrying. However, a lot of acidic substances are dissolved in the cooked Chinese medicine, which is easy to react with the chemical substances contained in the inner wall of the thermos and dissolve into the decoction, which has adverse effects on human health.

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