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To identify the quality of the thermos bottle, take the bladder out of the bottle shell to see if the glass tail tube (shaped like a teat) under the bottle is damaged. If it is broken, it means that the air has entered the middle of the two layers of glass and it is impossible to keep the heat preservation.
THPS is the abbreviation of tetrahydroxymethylsulfurin. In China, the application of THPS is in an in-depth research stage, and the experimental research results show that THPS is an environmentally friendly biocide, and the application of THPS in the field of cooling water treatment is becoming increasingly widespread.
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.
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.
Bento has existed since ancient times, and in modern society, it is more common due to the continuous growth of office workers. A delicious and nutritious bento can not only supplement the body's needs, but also make the mood happy.
What is a good dish to bring for lunch? 3 dishes that are suitable for lunch boxes, not easy to spoil and nutritious!