1, vacuum insulation Performance simple identification method: Pour boiling water into the Thermos cup clockwise tighten the bottle stopper or cup cover 2-3 minutes after the hand touch the outside surface of the cup, if the cup body has obvious warm phenomenon, indicating that the product has lost the vacuum, can not achieve a good insulation effect.
2, Sealing performance Identification method: in the cup after adding water, in a clockwise direction to tighten the bottle stopper and cup cover, the Cup flat on the table, should be free of water leakage, cup cover and cup mouth of the spin should be flexible, no gap.
3, Plastic parts identification method: Food grade new plastic is characterized by small odor, bright surface, no burrs, long service life is not easy to aging.
Ordinary plastic or recycled plastic is characterized by a large smell, gray color, burrs, plastic easy to age easily break.
4, capacity simple identification method: the depth of the inner gall and the height of the shell is basically the same, (the difference 16-18mm) capacity and the nominal value of the match. Some of the less quality thermos cups add sand and concrete blocks to the cup to make up for the missing weight.
MYTH: a cup (pot) heavier is not necessarily good.
5, stainless steel material simple identification method: Stainless steel material specifications are many, of which 18/8 means that the composition of this stainless steel material contains 18% chromium, including 8% nickel, to meet this standard of materials, in line with the national food grade standards are green products, products rust-proof, corrosion resistance.
Ordinary stainless steel cup body color appears white and dark, if put into a concentration of 1% of salt water soaked in 24 hours will produce rust spots, it contains some elements exceeding the standard, directly endangering the health of the human body.
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