Tips for Buying Insulated Mugs

Stainless steel insulation cups sold on the market in many varieties, the price difference is also very large, for some consumers, do not understand the principle, often spend a lot of money to buy a product that is not satisfactory. How can I buy a high-quality vacuum insulation cup?
First look at the appearance of the cup. A look at the inner liner and outer liner surface polishing is uniform and consistent, whether there are bruises and scratches defects;
Look at the mouth of the welding is smooth and consistent, which is related to a drink of water when the feeling is comfortable;
Third look at the poor quality of plastic parts. Will not only affect the service life, but also affect the drinking water health;
Look at the internal seal is tight. Screw plugs and cups with the right fit. Screw in and screw out whether it is free, whether water leakage. Fill a cup of water inverted four, five minutes or force to shake a few times to verify whether the water leakage. Look at the thermal insulation performance, which is the main technical indicators of the insulation cup. General purchase is not possible in accordance with the standard check, but can be filled with hot water by feel check, not insulated cups filled with hot water two minutes after the lower part of the cup body will be hot, and insulation of the lower part of the cup is always cool.
Specifically, there are a few of the following methods.
1, vacuum insulation performance simple identification method: pour boiling water into the insulation cup clockwise screw the stopper or lid 2-3 minutes after touching the outer surface of the cup body, if the cup body has obvious warm phenomenon, that the product has lost the vacuum, can not achieve a good insulation effect.
2, sealing performance identification method: in the cup with water, according to the clockwise direction to tighten the stopper and the lid, put the cup flat on the desktop, there should be no water leakage; cup lid and the mouth of the cup 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 odor, gray color, burrs, plastic is easy to aging and easy to break.
4, capacity simple identification method: the depth of the inner liner and the shell of the height of the basic same, (difference of 16-18MM) capacity and nominal value in line. Some poor quality insulation cup in the cup to add sand, cement blocks to make up for the missing weight. Myth: Cup (pot) heavier is not necessarily good.
5, stainless steel material easy identification method: stainless steel material specifications are many, of which 18/8 that this stainless steel material composition contains 18% chromium, containing 8% nickel, to achieve this standard material, in line with the national food-grade standards is a green product, the product is rust-proof, corrosion-resistant. Ordinary stainless steel cup body color showing whitish and dark, if put into the concentration of 1% salt water soaked for 24 hours will produce rust spots, some of the elements contained therein exceeds the standard, directly endangering human health.