How many hours is the maximum heat preservation time for a good thermos cup?
A good thermos cup can keep warm for about 12 hours, and a poor thermos cup can only keep warm for 1-2 hours. In fact, the general insulation cup can keep warm for about 4-6 hours. So buy a better thermos cup and try to buy a brand.
How many hours can a thermos cup keep warm?
Generally, it is 5-6 hours, and the better one is almost 8 hours. This has a lot to do with the quality of the thermos cup!
It is normal for the thermos cup to keep warm for several hours
Different thermos cups have different heat preservation time. A good thermos cup can keep heat for about 12 hours, and a poor thermos cup can only keep heat for 1-2 hours. In fact, most thermos cups can keep warm for about 4-6 hours, and when you buy a thermos cup, there will be an introduction to explain how long it will keep warm. Insulation cup, simply put, is a cup that can keep warm. It is generally a water container made of ceramics or stainless steel with a vacuum layer. It has a cover on the top and is tightly sealed. The vacuum insulation layer can delay the heat dissipation of water and other liquids inside. In order to achieve the purpose of heat preservation.
How to choose a thermos cup:
1. This is the main technical index of the thermos cup. After filling it with boiling water, tighten the cork or lid clockwise. After 2 to 3 minutes, touch the outer surface and lower part of the cup body with your hands. The obvious warm phenomenon means that the inner tank has lost its vacuum degree and cannot achieve a good heat preservation effect.
2. Fill a cup of water and turn it upside down for four or five minutes, screw the lid tightly, place the cup flat on the table, or shake it a few times, if there is no leakage, it means that the sealing performance is good; Whether the screwing of the cup mouth is flexible and whether there is a gap.
4. There are many stainless steel material specifications, among which 18/8 means that the 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. The product is rust-proof and corrosion-resistant. If the cup body is made of ordinary stainless steel cups, the color will be whitish and dark. If it is soaked in 1% salt water for 24 hours and rust spots will appear, it means that some elements contained in it exceed the standard, which will directly endanger the health of the human body. healthy.
Post time: Feb-06-2023