In addition to looking at the thermal insulation of a vacuum flask, what should be considered?

The prices of vacuum flasks on the market are high and low, which is quite a headache for customers who often shop. It is not easy to really buy a safe and practical vacuum flask. In addition to considering the insulation performance of the thermos, the most important thing is to consider the safety of the thermos material.

Although the more expensive the thermos is not the better, it is indeed not recommended that you buy too cheap thermos. Because this may use 201 stainless steel, there will be safety hazards such as heavy metals exceeding the standard. Qualified vacuum flasks are made of food grade stainless steel 304 and medical grade 316. The 316 material is lighter, more resistant to high temperatures, and more corrosion resistant, but the cost is also higher. If possible, it is recommended to buy material 316 Stainless steel vacuum flask.

Then in addition to the inner tank, the seal ring should also be paid attention to. Generally, food-grade materials such as Tritan, pp and silicone are used, which are relatively safe.

The vacuum flask produced by Dongguan Zhanyi Commodity Technology Co., Ltd. is made of sufficient materials and exquisite workmanship. The material adheres to the combination of food grade 304 stainless steel inside and outside, or a combination of 304 stainless steel outside and 316 stainless steel. The heat preservation time can be up to 18 hours, and the cold preservation time can be up to 24 hours. Customers from all over the world are welcome to visit our factory for inspection, and welcome to place orders for cooperation.