This is the main technical indicator of the thermos cup. After filling with boiling water, tighten the cork or lid clockwise.
Pour boiling water into the thermos cup and tighten the cork or lid clockwise for 2-3 minutes, then touch the outer surface of the cup body with your hands.
The appearance is smooth and odorless. After pouring boiling water, holding a thermos cup without heat can be called a good cup.
The thermos cup is generally a water container made of ceramic or stainless steel plus a vacuum layer.
Such as ceramic cups, glass cups, plastic cups, stainless steel cups, wooden fish stone cups, cloisonne cups, thermos cups, etc.
The bottom of the regular plastic bottle has a triangle with an arrow, and there is a number in the triangle.
Whether it is table salt or coarse salt, it can help us remove tea stains from the cup.
Paper cups are easy to use and not easy to spread diseases, which is an advantage, but waxy chemical raw materials will be added in the manufacturing process of paper cups to prevent water seepage.
The disadvantage is that it cannot withstand too high temperature, and it is easy to decompose and deform when the temperature is too high.
The water cup is a container we use to hold liquids in our daily life. It is usually shaped as a cylinder with a height greater than its width, so that it is easy to hold and retain the temperature...
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