What is blast freezing? (flash freezing) 

Blast freezing is when produce or goods are taken from room temperature to freezing temperatures in a very short time, in most cases within 4-8 hours. In rare cases, products are not frozen but chilled quickly, this process is known as flash/blast cooling or chilling. In those special cases, produce is kept above freezing. The principle is the same, they are cooled in a short time. 

Reasons why flash freezing foods are better

  • Cost effectiveness 
    Flash freezing products are cost effective as it reduces temperatures rapidly, therefore reducing storage times before goods are shipped out.
  • Controls Spread of bacteria
    Due to the rapid cooling time, this stops bacteria and other pathogenic microbes from spreading and causing disease. This is crucial for food safety and to stop health hazards. 
  • Texture and quality of good maintained
    Due to the rapid cooling, ice crystals are halted from forming. This stops breakdown of texture and constancy of goods. Ice crystal formation expand and breaks cellular integrity, resulting in loss of quality and taste. 
  • Improves longevity and shelf life 
    Due to the rapid low temperatures, and low bacteria formation. flash frozen goods can be stored for longer times and have better quality than regular frozen goods. 

How can i buy a blast freezer? 

You must contact a refrigeration specialist to guide you. Many variables need to be calculated. Be prepared to answer the following what products you planning to cool, incoming product temperature, how many tons of product are required, your location and weather, and your temperature requirement and time. 
The refrigeration specialist will calculate the load and suggest the best machines to use. 
Blast Freezing machines normally include floor-mounted air coolers and a 2-stage refrigeration system. However there are many many systems for this application, and an experienced refrigeration engineer would guide and advise you. 

Standard Blast freezing Equiptment

2-stage Refrigeration unit 
Floor-mounted aircooler

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