304 stainless steel is an austenitic stainless steel with good corrosion resistance and intergranular corrosion resistance. Because it contains 9% nickel, it can improve the high-temperature durability of stainless steel, so 304 stainless steel is a common material for vacuum cups. Its cost performance ratio is relatively high, the price is cheaper than 3 16 stainless steel, and it is suitable for consumers.

3 16 stainless steel is also an austenitic stainless steel with good corrosion resistance and high temperature strength. Compared with 304 stainless steel, it contains more nickel (average nickel content is 12%) and Mo. The addition of these elements makes 3 16 stainless steel superior to 304 stainless steel in corrosion resistance, high temperature strength and work hardening. If only for daily use, 304 stainless steel has been able to meet most of the needs; For some users with special needs, 3 16 stainless steel may be more suitable.

Maintenance skills of thermos cup

1, Cleaning: Cleaning the thermos cup is very important to prevent the occurrence of bacteria and odor. It is recommended to wipe the inner and outer walls with a clean rag or paper towel after daily use to avoid dirt accumulation. When cleaning, it is recommended to use mild detergent and avoid using corrosive detergents such as acid and alkali.

2. Storage: When the thermos cup is not in use, it should be placed in a dry and cool place to avoid humidity and direct sunlight. At the same time, in order to keep the insulation effect of the cup, don't put the thermos cup in a high temperature environment for a long time, such as in a car.

3. Water injection: It is recommended to only inject water into the thermos cup to avoid other drinks or alcohol. Because these drinks may corrode the inner wall and affect the insulation effect. At the same time, if the acidic beverage is filled, it may corrode the inner wall of stainless steel and affect its service life.