Blast freezer
Short definitionA room running at −35 / −40 °C where product is frozen in a short time. Most of the load comes from freezing the product.
A storage room keeps product cold. A blast freezer cools the product down and freezes it. That is why it needs many times the refrigeration capacity of a storage room of the same size.
Three values drive the calculation: the amount of product loaded at one time (the batch), the product’s entering temperature and the freezing time. The shorter the time, the more capacity is needed. Panels are 150–200 mm and the floor is always insulated.