Tempshell -21°C is made for the transport and storage of frozen food samples, frozen clinical specimen and other frozen materials.
-21°C TempShells and TempFrames are suitable hold a product under freezer conditions.
Even in hot climate the element will always store your product at -21°C.
The element or frame must simply be pre-cooled below -23°C, once the fluid is solid, which can be seen through the transparent casing, the element is ready to use.
