How To Choose A Better Thermos Cup?
May 07, 2021
You can identify the pros and cons from the following points when purchasing a vacuum flask.
1. Fill the cup with water, tighten the lid, and turn it upside down. If the cup does not leak, it proves that the cup is tightly sealed.
2. Pour boiling water into the cup, tighten the lid and place it for a few minutes, and then touch the body of the cup with your hands. If the body of the cup is hot, especially the bottom of the cup, it indicates that the heat preservation performance of the cup is not good. If the cup body is always cold, it means that the cup has a better heat preservation effect.
3. You can also observe the appearance and accessories of the cup. If the cup body and inner liner are smooth, without burrs and scratches, and the plastic accessories have no peculiar smell, it means that the quality is good.
