Spray Chiller – Fluid Chilling

Industry: Fruit and Vegetables (NAICS 3114) Meat (NAICS 3116)

NAICS process:

 

311411 Frozen Fruit and Vegetables

311412 Frozen Specialties

311611 Animal Slaughtering

311612 Meat Processed from Carcasses

311615 Poultry

 

Process Brief: Chilled liquid is sprayed onto the product to achieve rapid cooling

 

Energy source: Electricity/ some Natural Gas

 

Energy Intensity: 250-1,700 Btu/lb of product

 

Spray chillers are used to freeze products such as poultry that are put in plastic bags and sprayed with a chilled liquid such as propylene glycol, brine, glycerol, or calcium chloride solution. The bagged product is usually being conveyed into a tunnel freezer where it is sprayed with a chilled liquid. After freezing, the bag is sprayed with water to remove the chilled fluid. To ensure safety, the bag must be sturdy and secure to ensure that the chilled fluid does not contact the product. Also, the chilled liquid must be non-toxic in case the bag has a small leak.