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Marketing and ServiceBusiness consulting telephone:
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Marketing and ServiceBusiness consulting telephone:
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Service
Marketing and ServiceBusiness consulting telephone:
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2022
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06
What does the hole in the bottom of the double glass do?
There are many reasons why the double-layer glass is popular. One is that it has a certain thermal insulation effect, and it is insulated, so it will not be hot even if you pour hot water; The brown color can be well observed in tea. But many users find that it will have a small hole at the bottom, what is this for?
1. Double-layer glass cups are generally blown by hand. The middle compartment is not vacuum at all. There is an air outlet at the bottom of the outer layer of the cup to discharge gas during the blowing process and prevent the cup from deforming and bursting. This The process is similar to the inner liner of a thermos, which is the closing point, where the air between the glass during the production process can be eliminated. It can balance the pressure between the glasses when loading hot water and cold drinks, so that the air can circulate to avoid the infiltration of water vapor, prolong the service life of the glass, and ensure the use. The main function is to accelerate the air circulation in the cup and prevent the cup from cracks caused by pressure.
2. In summary, the bottom of the double-layer glass is designed with air holes because the function of the small holes is that when the cup is filled with hot water, there will be a place left when the air begins to expand, otherwise the cup will be damaged due to excessive pressure. burst and injure the user.
It can be seen that the air hole at the bottom of the double-layer glass is actually a protective device, which can prevent the cup from bursting due to excessive pressure, and can ensure the use of the glass to a large extent, so when we choose to buy, we should choose the bottom with air holes. of.
