How to Choose thermos food flask？
1. Material.
Thermos food flask is divided into cup body and cup cover. Now most of the common cup body is made of 304 stainless steel. The cup cover is made of edible grade PP material, which is safe and hygienic.
304 stainless steel is a common material in stainless steel. Its density is 7.93 g/cm3. It is also called 18/8 stainless steel in the industry. High temperature 800 degrees, with good processing performance, high toughness, widely used in industry and furniture decoration industry and food and medical industry. The 304 non-embroidered steel used in the braised beaker is similar to the material of the vacuum insulated bottle, but the vacuum heat preservation process of the thermos food flask will be stronger and the holding time will be longer.
Food grade PP is the plastic of packaged food which meets the safety standard. The degraded ingredients will not threaten human health, so it can be used safely.
2. The size.
In addition to focusing on appearance factors such as color and pattern, the capacity of the thermos food flask should also be noted. If it is used for kids or babies, 300ML is enough; if it is used for adults, the recommended size is 2.8L.
