RE-FREEZ-R-BRIX™ is a block of rigid foam that holds its shape frozen or thawed and is reusable. Non-toxic, reusable, sealed in a heavy plastic pouch, maintains shape. Prevents thawing – Keeps frozen products chilled for an extended period of time. Protects against freezing – When packaged in properly insulated containers, warmed RE-FREEZ-R-BRIX™ release heat, keeping perishables from freezing. Protects from warming – Keeps perishables requiring a temperature range of 32°F to 60°F at a safe, uniform cool temperature for over 14 days.