To distinguish the quality of the vacuum flask, we must first know from which aspects to distinguish. The vacuum degree of the vacuum flask is an important parameter, and the tightness of the lid is a prerequisite for its safe use. Plastic accessories and stainless steel raw materials are the basis for us to distinguish the quality of the vacuum flask. Every aspect determines the function of the vacuum flask, and only the vacuum flask that meets these conditions is a product of high quality. So let's take a look with the editor to see how to distinguish the quality of the vacuum flask according to these parameters!

The quality of the vacuum flask-how to distinguish the quality of the vacuum flask

Vacuum degree identification of the thermos cup-pour boiling water into the thermos cup, turn the cork or lid clockwise for 2-3 minutes and then touch the outer surface of the cup body (the cup body and the bottom of the cup) with your hands. If the cup body or bottom is There is obvious warming phenomenon, indicating that the product has lost its vacuum and cannot achieve a good insulation effect, so this cup is a low-quality product. Don't buy it.

Identification of the tightness of the thermos cup-after adding water to the cup, tighten the cork and lid in a clockwise direction, place the cup flat on the table, and there should be no water leakage, otherwise, do not buy inferior products; cup lid and cup mouth The screwing should be flexible and there is no gap.

The quality of the vacuum flask-how to distinguish the quality of the vacuum flask

Identification of the quality of plastic parts-The characteristics of new food-grade plastics are small odor, bright surface, no burrs, long service life and not easy to aging. Ordinary plastics or recycled plastics are characterized by big smell, dark color, many burrs, and plastics are easy to age and break easily.

Capacity discrimination-the depth of the inner tank is basically the same as the height of the outer shell, (the difference is 16-18MM) the capacity is in line with the nominal value. Some low-quality vacuum flasks add sand and cement blocks to the cup to make up for the missing weight. Misunderstanding: A heavier cup (pot) is not necessarily good.

Identification of stainless steel raw materials for thermos mugs-There are many specifications of stainless steel materials. The 18/8 (usu304) model indicates that this stainless steel material contains 18% chromium and 8% nickel. The material that meets this standard is green and environmentally friendly. Products, products are rust-proof and corrosion-resistant. Generally speaking, you can see the steel seal on the bottom of the inner tank. If there is usu304 or 18/8, it means that the material meets the national standard.