Blast freezer

Simply put, a blast freezer is just a freezer which is very cold. Blast Freezers are sometimes referred to as shock freezers. The idea of this type of freezer is to very rapidly bring down the temperature of (usually) foodstuffs or fresh produce, freezing them very quickly.The difference between a freezer and a blast chiller is that a freezer holds food at below freezing temperature while a blast chiller cools food quickly by blowing cold air over the food product and gradually dropping the temperature in the chamber.