Don't just look at weight. Most people think that the heavier the heat thermos bottle, the better the quality and the better the heat preservation effect. In fact, this view is wrong. The main reason why the thermos bottle is important is that the manufacturer has added things such as magnets to the water to magnetize the water quality. This kind of cup is also regarded as a health pot, and will never be a heat thermos bottle, because the real heat preservation pot is generally It is insulated by vacuum.
Everyone knows that the better the vacuum effect of the thermos bottle, the better the sealing and the better the heat preservation effect.
It depends on whether the thermos bottle is a real vacuum, because everyone knows that air has a certain heat conduction effect, and in a vacuum state, the temperature will not be transferred, so whether the heat preservation effect of the heat preservation pot is good, the most important point is It depends on his vacuum.
Simple identification method of vacuum insulation performance:
Pour boiling water into the thermos bottle and tighten the cork or lid clockwise for 2-3 minutes and then touch the outer surface of the cup with your hand. If the cup body has obvious warming, it means that the product has lost its vacuum and cannot reach a good level. Thermal insulation effect.
Sealing performance identification method:
After adding water to the cup, tighten the cork and lid in a clockwise direction, place the cup flat on the table, and there should be no water leakage; the screwing of the lid and the mouth of the cup should be flexible and there should be no gap.