Thermos mixed sand？

Summer is approaching, Thermos flask market freeze, many manufacturers began to discount deal, cheap prices to attract a lot of attention of consumers. There are attentive people found some mug cup body holds relatively soft, with traditional stainless steel is not the same. Some mug got to shake hands when will issue a "rustling" sound. Many people call the woman reportedly expressed doubts: mug is not there anything you prefer?

In Jinan, a number of commodity markets, sales mug store really a lot. With stainless steel mug, the price differences between selling only a few dollars cheaper, you will have a few hundred dollars.

Female newspaper reporter found that many priced at 10 yuan or so mug, grip will issue a "crunchy" sound when shaking hands. A shopkeeper Oriental small commodity wholesale market wholesale business franchise department, said the store will have filling sand mug, "priced at ten dollars, the insulation effect in general." He said, inwardly mug cup filling sand in order to increase weight, so that when shaking the cup is not easy to fall. The store has said a staff member, the inner mug filled with sand see everyday ordinary sand is not the same, "This is a special insulation sand, let the cup cool water slowly."

A shopkeeper Jinan Heng Mall said, some manufacturers in order to increase the weight of the mug will play tricks on bottom of the cup. She said that many consumers believe that the heavier the better the quality mug, so some manufacturers in the production of low-cost mug will depend on the sand when the weight gain.

Truth "insulation sand" there is no insulation effect

In the 23rd, female newspaper reporter in the market to buy a three mug, respectively, which compiled for the 1st, the 2nd, the 3rd. Among them, the 1st, the 2nd is the owner promised free sand mug, the 3rd is the seller claimed mug with special insulation sand.

Female newspaper reporter with a screwdriver in the bottom of the cup three mug disassembled, found three sand bottom of the cup are equipped with similar substances. Sand was the 1st mug inside a powder-like, orange; sand was the 2nd mug is more moist, dark brown; the 3rd mug of sand-like particles is large, pale brown. Sand within the 3rd mug really amazing insulation features?

Professor of Mechanical Engineering Machinery Manufacturing Jinan University to Bo Jackson said, in general, low prices mug simply shell pressed together with the liner, not a vacuum treatment, poor insulation effect; in addition to the high-grade mug outside air is evacuated between the liner with the shell, but also between the liner with the shell coated with a layer of polymer materials to better insulation, the price is relatively expensive. "Most of cheap mug sand was added primarily to reduce costs by increasing the weight of the cup to increase the feel, shoddy, other less useful." Bo Jackson to say.

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