Uses of Thermos Flasks

Thermos flasks are made of materials such as bamboo, plastic, sheet metal, aluminum, and stainless steel. They have a rubber gasket at the mouth and a bowl-shaped rubber base at the bottom to secure the glass liner and prevent it from colliding with the outer shell. The area around the neck of the thermos flask is where heat is most conducted. Therefore, manufacturers strive to shorten the neck as much as possible. The larger the capacity and the smaller the mouth, the better the insulation. Under normal circumstances, it can keep cold drinks at around 4°C and boiling water at around 60°C for up to 12 hours. Thermos flasks are closely related to people's work and daily life. They are used in laboratories to store chemicals, and people use them to store food and drinks during picnics and football matches. In recent years, many new designs have been added to the spouts of thermos flasks, resulting in pressure thermos flasks and contact thermos flasks, but the principle of heat preservation remains the same.