The purchase skills of the vacuum insulation cup

There are many varieties of stainless steel insulation cups sold in the market, and the price differences are very different. For some consumers, they do not understand its principles, and often spend a lot of money to buy products that are unsatisfactory. How can I buy high -quality vacuum insulation cups?

First of all, look at the appearance of the cup. See if the surface of the inner and outer biliary surface polishing is evenly consistent, whether there are injuries and scratching defective diseases;

Second, whether the welding of the mouth is smooth and consistent, whether the relationship is comfortable when drinking water;

Three look at the poor quality of plastic parts. Not only will it affect the service life, but it will also affect the hygiene of drinking water;

Fourth, see if the internal seal is tight. Whether the screw and the cup are suitable. Whether to spin the rotation freely and water leakage. Filled a glass of water for four or five minutes or threw it for a few times to verify whether the water leaks. Look at the thermal insulation performance, this is the main technical indicator of the thermal insulation cup. Generally, it is impossible to check according to the standard when buying, but it can be checked by the hot water after it is filled with hot water. After two minutes of hot water, the lower part of the cup will be hot, and the lower part of the insulation cup is always cool.

There are several methods for specific methods:

1. Simple identification method of vacuum insulation performance: Pour the boiling water into the inside of the thermal inside of the insulation clockwise tight bottle plug or cup lid for 2-3 minutes, touch the outer surface of the cup body by hand. If the cup body has obvious warmth phenomena It has lost the vacuum and cannot achieve a good thermal insulation effect.

2. Sealing performance identification method: After the cup is added, the bottle plugs and cup lids are tightened in the direction of clockwise, and the cup is placed on the desktop. Essence

3. Plastic accessories identification method: Food -grade new plastic is characterized by small smell, bright surface, no burrs, and long service life is not easy to age. Ordinary plastic or recycling plastic is characterized by large smell, dark color, many burrs, and plastic aging and easy to break.

4. Simple capacity identification method: The depth of the inner linery is basically the same as the height of the shell, (16-18mm) capacity is consistent with the nominal value. Some poor quality insulation cups add sand and cement blocks to the cup to make up for the lack of weight. Misunderstanding: Cup (pot) heavier is not necessarily good.

5. Simple identification method of stainless steel materials: There are many specifications of stainless steel materials, of which 18/8 indicates that the composition of this stainless steel material contains 18%chromium and 8%nickel. It meets this standard material. It meets the national food grade standards. Rust -proof and corrosion resistance. The color of ordinary stainless steel cups is white and dark. If it is soaked in saline with a concentration of 1%, it will produce rust spots after soaking for 24 hours. The part of the elements it contains exceeds the standard and directly endangers the health of the human body.