Stainless steel thermos cup has heat preservation and cold preservation function, while ordinary thermos cup has poor heat preservation and cold preservation function, and vacuum thermos cup has much better effect. On a hot day, we can fill ice water or ice cubes in a vacuum flask and enjoy the cool feeling at any time. You can fill hot water and drink hot water at any time in winter.
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Drinks not suitable for thermos:
1, acidic beverage
If the inner container of the thermos cup is high manganese and low nickel steel, it cannot be used to hold acidic drinks such as fruit juice or carbonated drinks. This material has poor corrosion resistance and is easy to precipitate heavy metals when it meets acid. Long-term release of acidic beverages may harm human health.
2. Milk
Some people put hot milk in a thermos and carry it with them. However, the acidic substances contained in dairy products will react chemically with stainless steel, which is not conducive to human health. Microbes in milk will also accelerate reproduction at higher temperature, which will make milk rot and deteriorate, causing discomfort such as abdominal pain and diarrhea.
3. tea
Many middle-aged and elderly people like to fill a thermos cup with hot tea when they go out, and it won't be cold all day. If tea leaves are soaked in hot water for a long time, the nutrients contained will be destroyed, and tea leaves will no longer be mellow and bitter.
4. Chinese medicine
Some people are used to frying Chinese medicine in the morning and drinking it in a thermos cup in the afternoon. However, the pH of traditional Chinese medicine is different, and it is easy to corrode the stainless steel inner wall of the thermos cup after drinking, resulting in chemical reaction and harm to the body.
Baidu encyclopedia-stainless steel thermos cup
People's network-four in the thermos cup