Freezing & Defrosting

Level of Frozenness (LOF)

Temperature is an unreliable indicator to see if a product is properly frozen. Once the temperature drops below the freezing point, the water starts to crystallize. During this crystallization process, the ice fraction grows over time, while the temperature remains rather constant (latent heat region). Therefore, Aquantis introduced the Level Of Frozenness (LOF) to determine to which extent a product is frozen. The Callifreeze clearly distinguishes the liquid from crystallized water fractions in your products, making it more reliable to determine if your product is properly frozen.

Aquantis Freezing Sensor

Increase your production capacity of your freezing tunnels and reduce your product waste and energy costs. Our sensors ensure that the products leave the freezer at the optimal freezing state meeting the highest quality standards. Discover our freezing sensors for either individual or layers of products. Our freezing sensor - CALLIFREEZE - has won the innovation price of CFIA EXPO 2019 in Rennes, France!



The Level Of Frozenness (LOF) can be used in various settings to ensure good conservation of your products. Combining our freezing sensor with industrial freezers increases the efficiency of the freezing processes saving energy costs and obtaining a higher throughput. For quality control of incoming frozen goods, the LOF immediately indicates if a product thawed during transportation and can be further processed. Typical products include:

  • Meat
  • Fish
  • Fries
  • Vegetables

Contact us for more information.

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