Vacuum heat preservation performance simple identification method: pour boiling water into the heat preservation cup and screw the bottle stopper or cup cover clockwise for 2-3 minutes, then touch the outer surface of the cup body by hand. If the cup body has obvious warmth, the product The vacuum has been lost and a good insulation effect cannot be achieved.
2, sealing performance identification method: after adding water to the cup, screw the bottle stopper and the lid in a clockwise direction, put the cup flat on the table, should be no water leakage; the cup lid and the cup mouth should be flexible, no gap .
3, plastic parts identification method: food-grade new plastic is characterized by small smell, bright surface, no burrs, long service life and not easy to aging. Ordinary plastics or recycled plastics are characterized by large odor, dark color, many burrs, and easy aging of plastics.
4, capacity simple identification method: the depth of the liner is basically the same as the height of the outer casing, (the difference of 16-18MM) capacity and the nominal value. Some poor quality mugs add sand and cement to the cup to make up for the missing weight. Myth: The weight of the cup (pot) is not necessarily good.
5, stainless steel material simple identification method: stainless steel material specifications, 18/8 means that the stainless steel material composition contains 18% chromium, containing 8% nickel, meets this standard of materials, in line with national food-grade standards are green products, products Anti-rust and corrosion resistance. Ordinary stainless steel cup body color is whitish and dark, if placed in a concentration of 1% salt water for 24 hours, it will produce rust spots, and some of its elements exceed the standard, directly endangering human health.
