The method of choosing a vacuum flask is very simple. It can be judged from the performance of heat preservation, sealing, plastic parts and materials.
When we choose a vacuum flask, the heat preservation effect and materials are the most concerned.The following is the method of judgment.
Firstly,touch the bottom and see the heat preservation performance.The thermal insulation performance of the vacuum flask mainly refers to the inner container of the vacuum flask. Tighten the thermos cup after filling it with boiling water. After about 2 to 3 minutes, touch the surface and bottom of the cup with your hands. If you find a warm feeling, it means that the insulation performance is not good enough.
Secondly,shake it and look at the tightness.Fill a cup of water, tighten the lid of the cup, invert it for a few minutes, or shake it a few times. If there is no leakage, it has good sealing performance.
Thirdly,smell it and see if the accessories are healthy.If the thermos cup is made of food-grade plastic, the smell will be small, the surface will be bright and long service life and will be not easy to age.
Look at the specifications.There are many specifications of stainless steel materials. Only materials that meet this standard are green products.
Post time: Aug-10-2020