The quality of thermos cups on the market varies from good to bad. How should ordinary consumers distinguish it? Industry insiders suggest that attention should be paid to the insulation performance of the inner tank structure, the degree of sealing between the cup cover and the bottle body, and whether the material releases harmful substances. Specifically, you can check the insulation cup through four methods.

Recruitment One: Differentiation of Insulation of Inner Gallbladder

This is the main technical indicator of the vacuum flask. After filling with boiling water, turn the cork or lid clockwise and touch the surface and bottom of the cup with your hands after 2 to 3 minutes. The warming phenomenon indicates that the inner tank has lost its vacuum degree and cannot achieve a good heat preservation effect.

Trick Two Identify the sealing performance

Fill a cup of water upside down for four or five minutes, tighten the lid, 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; in addition, look at the lid and the mouth of the cup. Whether the rotation is flexible and whether there is a gap.

Trick three: identification of environmental protection of accessories

The environmental protection of plastic parts is also an issue worthy of attention, which can be identified by smelling. If the cup is made of plastic, the smell is small, the surface is bright, there is no burr, and the service life is long and not easy to age; ordinary plastic or recycled plastic has a big smell , The color is dark, with many burrs, and the plastic is easy to age and break.