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     First, look at the product on the packaging manufacturer name, QS production license identification and number, manufacturer address, product performance standards, the production date, expiry date and other information. Too bad packaging, printing is best not to buy too rough.
     Second, you should select the shape plump, do not wrinkle, a certain thickness, not easily deformed products, if the cup mug too soft or torn look very easy to break, then mostly substandard products.
     Third, the smell is the smell, taste great if you open the packaging cups, mostly due to the use of low-quality producers of toxic ink causes.
     Fourth, do not covet color over white paper cups, paper cups white color too likely to join a fluorescent substance. It is not easy to be broken down, eliminate, stored in the body will affect the cell's normal growth and development, a serious cause cells to mutate, weakening the immune system and endanger human health. Therefore, experts recommend: paper cups, still pale in color a little better.
     Fifth, consumers, when used, should pay attention to is the cup of cold water or hot water cups cup. Surface layer of the food cup of cold water with wax, at 0 to 5 ° C is safe, but as long as the water temperature over 62 ° C, the wax will melt, after eating the body may cause diseases such as diarrhea.
     Sixth, the use of disposable cups, the first cup of water is best not to drink, first scalded with boiling water, four or five minutes after the water drained to allow sufficiently volatile harmful substances in paper cups. Because phosphor ink penetration is very strong, can contaminate foods, so try not to disposable cups used for heating in the microwave.