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Tempering and defrosting

Stalam

Traditional Defrosting

The choice, implementation and monitoring of freezing and defrosting methods are of paramount importance in the quality control of raw materials and processed food products.

Traditional defrosting methods introduce a number of problems directly related to heat transfer phenomena: (more…)

Linear Freezer Tunnel – Top lifting for continuous cooling or food freezing

Cryogenic Tunnel

Cryogenic tunnels use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for continuous cooling and freezing. A conveyor belt moves the product along the tunnel. Controlled injection of a cryogenic liquefied gas that immediately evaporates lowers the temperature in the tunnel. The latent heat of evaporation is the main source of cooling energy. Turbulence fans spread the gas in the tunnel in a controlled way and efficiently transfer the cold to the product’s surface. Exhaust fans extract the residual gases. (more…)