How much do you know about thermos cups
1. What is the working principle of thermos cups?
Answer: Its wall is composed of double layers, and the middle of the double layer is a vacuum (vacuum does not conduct heat), that is, the vacuum is used to isolate the hot water from the outside world to achieve the purpose of heat preservation.
2. What are the characteristics of thermos cups?
Answer: Elegant in shape, comfortable in hand, sturdy and durable, easy to use, no matter high temperature or low temperature, it does not produce any harmful substances to the body.
The inner and outer layers are stainless steel construction. Refined with advanced vacuuming technology, it has elegant shape, seamless inner liner, good sealing performance and good thermal insulation performance. You can put ice cubes or hot drinks.
3. Why can’t the thermos make tea and milk?
Answer: Because tea contains a lot of tannic acid, theophylline and aromatic oil, and also contains a variety of vitamins, it can only be brewed with 70% to 80% hot water. It uses a thermos cup to make tea, and the tea leaves will be soaked in high-temperature water for a long time, so that many vitamins in the tea leaves will be destroyed, and the tannic acid and aromatic oil will also volatilize a lot, which greatly reduces the original nutritional value of the tea, making the Tea leaves have no fragrance and have a bitter taste, and harmful substances in tea will also increase. This kind of tea will definitely not taste good. In milk, bacteria can reproduce one generation every 20 minutes and can spoil the milk after 3-4 hours. In addition, the constant temperature in the thermos cup can destroy the vitamins in the milk, etc., and also directly affect the health of the child.
4. How long can a general thermos be kept warm?
Answer: The general thermos cup can be kept for 6-10 hours in summer and 3-5 hours in winter
5. How to remove the odor in the thermos cup?
Answer: First, clean the inside and outside of the thermos cup with clean water, then use a toothbrush dipped in table salt to brush a few times on the places with tea stains, and the effect will be immediate. Finally, don’t forget to clean the inside and outside of the vacuum flask with clean water.
This method is non-toxic and odorless. Suitable for thermos cups, thermos bottles, ceramic products, enamel products.
6. How to choose a thermos cup? Simple identification method of vacuum insulation performance: Pour boiling water into the thermos cup and tighten the cork or lid clockwise for 2-3 minutes and then touch the outer surface of the cup body with your hands. If the cup body is obviously warm, it means that the product has lost The vacuum degree cannot achieve a good thermal insulation effect.
Answer: Sealing performance identification method: after adding water to the cup, tighten the cork and lid clockwise, and place the cup flat on the table, there should be no water leakage; Twisting should be flexible with no gaps.
Recognition method of plastic parts: The characteristics of food-grade new plastics are small smell, bright surface, no burrs, long service life and not easy to age. Ordinary plastics or recycled plastics are characterized by strong odor, dark color, many burrs, and plastics are easy to age and break.
Simple identification method of capacity: the depth of the liner is basically the same as the height of the shell, and the capacity (with a difference of 16-18MM) is consistent with the nominal value. Some poor quality thermos cups add sand and cement blocks to the cup to make up for the missing weight. Myth: A heavier cup (pot) is not necessarily better. Simple identification method of stainless steel material: There are many specifications of stainless steel material, of which 18/8 means that the composition of this stainless steel material contains 18% chromium and 8% nickel. Materials that meet this standard meet the national food-grade standard and are green and environmentally friendly products, and the products are rust-proof. ,preservative. The color of the ordinary stainless steel cup is whitish and dark. If it is soaked in salt water with a concentration of 1% for 24 hours, rust spots will occur. Some of the elements contained in it exceed the standard, which directly endangers human health.
7. What is the function of the magnetized vacuum flask?
Answer: The magnetization of thermos cups refers to high-strength permanent magnet materials with good magnetization effect, which can purify water, sterilize, and disinfect functions, regulate human body functions, and have long-term use for the hearts of middle-aged and elderly people. And cerebrovascular disease, arteriosclerosis, gallstones, gastritis, calcium deficiency in infants and young people and other diseases have a significant preventive effect.
How to use: Pour ordinary water (boiled water, tea, beverages) into the cup, and use it after 4–8 minutes of magnetization. The longer the magnetization time, the better the effect.
8. What kind of things can be kept warm by the thermos?
Boiled water, tea, coffee, soup, Chinese medicine, porridge.
