The temperature range of a blast freezer varies depending on the manufacturer, but one thing is a fact; it is much colder than your average domestic freezer. At CRS, our range of blast freezers and chillers are designed with temperature ranges of -40°C to +10°C.Click to see full answer. Hereof, how cold is a blast chiller?Blast chillers report temperatures automatically and keep your records for you. Blast chillers are designed to bring the core temperature of food from around 160°F or more down to 41°F or less in about 90 minutes. Most units will freeze food in four hours or less. what is the difference between a freezer and a blast chiller? The main difference is that blast freezers work in a way that you can store your frozen products for a long period of time. This is because the temperature within a blast freezer is far lower than a blast chiller, allowing it to freeze the entire content. Then, how does a blast chiller work? The trays are placed inside the blast chiller and then a fan blows chilled air over the food, rapidly cooling it down. The rapid cooling reduces loss from evaporation during the cooling process and minimizes the size of the ice crystals that form in the food when it is frozen.What is the maximum time for cooling hot food in a blast chiller?A blast chiller should be able to reduce the temperature below 5°C within 90 minutes. kitchen use shallow, metal, uncovered trays. The temperature after 90 minutes should be about the same as the temperature of the room itself, prior to placing into refrigerated storage.