Five knowledge about thermos water bottle.
1. What is the working principle of thermos water bottle?
The wall of the thermos water bottle is composed of two layers, and the middle of the two layers is vacuum (vacuum does not conduct heat), that is, the hot water is isolated from the outside through vacuum to achieve the purpose of heat preservation.
2. What are the characteristics of thermos water bottle?
The thermos water bottle is elegant in shape, comfortable in handle, durable and easy to use. It does not produce any harmful substances regardless of high or low temperature. The inner and outer layers of the bottle are made of stainless steel. Refined by advanced vacuum technology, it has elegant shape, seamless liner, good sealing performance and good heat preservation performance. You can put ice or hot drinks.
3. Why can't a thermos water bottle make tea and milk?
Because tea contains a lot of tannic acid, theophylline and aromatic oil, as well as a variety of vitamins, it can only be brewed with 70% – 80% hot water. If you make tea with a thermos water bottle, the tea will be soaked in high temperature water for a long time, so many vitamins in the tea will be destroyed, tannic acid and aromatic oil will volatilize in large quantities, which will greatly reduce the original nutritional value of tea, make the tea taste bitter and astringent without fragrance, and the harmful substances in tea water will also increase. This kind of tea is definitely not good to drink. In milk, bacteria can reproduce every 20 minutes, and then deteriorate the milk after 3-4 hours. In addition, the constant temperature in the thermos water bottle can destroy the vitamins in the milk and directly affect the health of children.
4. How long can an ordinary thermos water bottle keep warm?
The general thermos water bottle can keep warm for 12 ~ 18 hours in summer and 6 ~ 10 hours in winter.
5. How to remove the odor in the thermos water bottle?
A: first of all, clean the inside and outside of the thermos water bottle with clean water, and then brush the dirty place with a toothbrush dipped in salt for a few times. Finally, clean the inside and outside of the thermos water bottle with water.
