How to choose a Vacuum bottle?

How to choose a Vacuum bottle?

1. Identification of thermal insulation performance

The thermal insulation performance of the thermos mainly refers to the liner of the thermos. After filling with boiling water, tighten the cork or the lid of the thermos cup clockwise. After about 2 to 3 minutes, touch the outer surface and lower part of the cup with your hands. If you find a warm feeling, it means that the insulation performance is not good enough.

2. Look at the tightness of the thermos cup

Fill a glass of water, screw the lid tightly, turn it upside down for a few minutes, or shake it a few times. If there is no leakage, it proves that the sealing performance is good.

3. Are the accessories healthy and environmentally friendly?

It is very important that the plastic parts of the Vacuum bottle are healthy and environmentally friendly. It can be identified by smell. If the thermos cup is made of food-grade plastic, its smell will be small, the surface will be bright, there will be no burrs, the service life will be long, and it will not be easy to age; if it is ordinary plastic, it will be inferior to food-grade in all aspects. plastic.

4. Identification of stainless steel materials

For stainless steel thermos cups, the quality of its material is very important. Among the common stainless steel varieties, 304 steel is the one with less chromium migration, and 304 steel can be easily selected by looking at the number. Generally, stainless steel products will be printed with numbers such as "18-0" and "18-8", indicating that the stainless steel material contains 18% chromium and 8% nickel. Only materials that meet this standard are green products.