Cup specific purchase method

1. Vacuum insulation performance simple identification method: Pour boiling water into the insulation cup and tighten the stopper or cap clockwise 2-3 minutes, then touch the outer surface of the cup body with your hand. If the cup body has obvious warming phenomenon, it means that the product has been lost Vacuum degree can not achieve good thermal insulation effect.

2. Sealing performance identification method: After adding water to the cup, tighten the stopper and the cap in a clockwise direction, and place the cup flat on the table, there should be no water leakage; the screwing of the cap and the cup mouth should be flexible without gaps.

3. Plastic parts identification method: The characteristics of new food-grade plastics are low odor, bright surface, no burrs, long service life and not easy to age. The characteristics of ordinary plastics or recycled plastics are large odor, dark color, many burrs, and plastics are easy to age and break easily.

4. Simple capacity identification method: the depth of the liner is basically the same as the height of the shell, (the difference is 16-18MM) and the capacity is consistent with the nominal value. Some poor quality thermos cups add sand and cement blocks to make up for the missing weight. Myth: Heavier cups (pots) are not necessarily better.

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. The materials that meet this standard are green and environmentally friendly products that meet the national food grade standards. ,preservative. Ordinary stainless steel cups appear white and dark. If put in 1% brine for 24 hours, it will produce rust spots, and some of the elements contained in it exceed the standard, which directly endangers human health.