Currently on the market for sale a lot of stainless steel mug variety, the price difference is also great, for some consumers, do not understand the principle, often spend a lot of money can not buy desirable products. How to buy high quality vacuum flask?

First look at the appearance of the cup:

A look at the liner and the outer surface of the gall bladder polishing is uniform, whether scratches and scratches flaws;

Second, look at whether the mouth welding is smooth and consistent, which is related to the feeling of drinking water is comfortable;

Third, look at poor quality plastic parts, which will not only affect the service life, but also affect the drinking water hygiene;

Fourth, to see if the internal seal is tight, screw plug and cup body is appropriate, screw into the screw out is free; whether leakage, filled with a glass of water upside down four or five minutes or force a few strikes to verify whether the water leakage.

Finally look at the insulation performance, which is the main technical indicators insulation Cup. Ordinary purchase can not be checked in accordance with the standard, but can be filled with hot water after hand check, non-insulated cup filled with hot water two minutes after the lower part of the cup will be hot, while the lower part of the cup insulation is always cool.

During use to avoid collision and impact, so as not to damage the cup or plastic, resulting in insulation failure or leakage. Tighten the plug when the force to be appropriate, do not force the rotation, so as to avoid failure of the screw. It is normal for the interior to change color when drinking coffee, tea, or beverages regularly. Use toothpaste and toothbrush to remove ...

When you buy a stainless steel vacuum cup, there are several ways to do it:

1, vacuum insulation performance Easy identification method: the boiling water into the insulation cup clockwise screwed corks or lid 2-3 minutes after touching the outer surface of the cup body, if the cup has a clear phenomenon of warming, indicating that the product Has lost the vacuum, can not achieve a good insulation effect.

2, sealing performance identification method: After the cup of water, tighten the stopper and the lid clockwise, the cup flat on the desktop, should be no water leakage; cup lid and cup mouth should be flexible, there is 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 plastic recycling is characterized by smell, dark gray, burr and more easy to break plastic aging.

4, the capacity of simple identification method: the depth of the liner and the shell is basically the same height (a difference of 16-18MM) capacity consistent with the nominal value. Some poor quality mugs add sand and cement blocks to make up for the missing weight. Myth: cup (pot) heavier is not necessarily good.