A blast chiller cools food very quickly by rapidly blowing cold air over it. The food is then usually removed from the blast chiller and stored in a regular freezer. Unlike blast freezers, blast chillers are not essential for food safety reasons. But there are many benefits to having one. For example, they can improve the quality of the food by locking in nutrients and taste, and they can help cut back on food waste.Put very simply, a blast freezer is just a freezer that stores food at very, very cold temperatures. Blast freezers are designed to rapidly freeze whatever is put in them. Usually, this involves food. It is important to bring the temperature down on food very quickly, to kill off and prevent bacteria from multiplying in the food. Because of this, blast freezers are widely used across the food industry, and especially in processing, but also in many commercial kitchens.