What Is a Stainless Steel Vacuum Flask？

Drinking water is indispensable for people. In the hot summer, come with a glass of cool ice water to quench your thirst; in the cold winter, a cup of hot coffee can refresh your mind. With the development of the economy, people's ideological awareness has improved, and "environmental protection" has become a hot topic. The ordinary paper cup is obviously not the best choice, because it can only solve temporary problems and provide us with convenience. They neither It is environmentally friendly and cannot maintain the temperature and lacks longevity. Therefore, the stainless steel vacuum flask ;has become the best choice for people. ;

Advantages

Temperature: Stainless steel can maintain the required temperature of the liquid for several hours. For example, our 30-ounce stainless steel water cup can keep beverages cold for 24 hours and hot for 6 hours. Steel will not "sweat" or condense on the outside, so there is no need for coasters or insulation.

Antibacterial and sanitary: It is a well-known characteristic of stainless steel. It is widely used in the food and beverage industry. Stainless steel cups and bottles do not leak water. They do not need inner coatings or linings that will eventually decompose.

Understanding

When we buy thermos cups and stainless steel cutlery, we will see numbers marked with 304, 316, etc. These numbers actually represent the material of the water cup. What do the 304 and 316 on the cup mean?

This is the material model of the inner tank of the water cup. It refers to 304 and 316 stainless steel, and the full name is austenitic stainless steel. 304 and 316 stainless steel are internationally approved food-grade stainless steels, which are often used in stainless steel tableware. 304 and 316 stainless steel are stainless steel brands produced according to ASTM standards in the United States. 304, 316 stainless steel has good corrosion resistance and heat resistance and is widely used in daily necessities such as tableware and water cups.

In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. Therefore, most cups are marked with 304 and 316.

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