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Applications overview

Optimize you freeze drying process with Caltherm oils designed for extreme low temperature

Freeze-drying is a dehydration technique which has the advantage of preventing microorganisms development for a long shelf life. This process is notably used by the food industry for the preservation of fruits, herbs or even instant soups.

Freeze-drying consists of removing water from a liquid, pasty or solid product. It takes place in two steps: first a quick deep-freezing at temperatures below -70°C, then a vacuum evaporation of the water. The steam (or any other solvent) leaves the product and is captured by freezing using a condenser or a "cold trap".

A cooled heat transfer fluid circulates into a network of fine coils or the tank surrounding and provides the deep-freezing. Then, the enclosure is moderately raised in temperature allowing water to evaporate and the food to come back to at room temperature.
Consequently, the ideal heat transfer fluid must allow the supply of energy without significant modification of its physical parameters whatever the temperature.
Caltherm silicone technology fluids such as Caltherm UBT are perfectly suitable for this kind of processing. 

Indeed, these products are anhydrous, have very low pour points and very low viscosities at low temperatures.
Safety, non-toxicity and non-reactivity are the key points to ensure longevity to your production system.

From -110°C to 200°C, Caltherm products will help you to preserve your sensitive foodstuffs.

Our products

Caltherm CD12

Synthetic fluid for cold and warm application

  • Nature
  • Minimum Temperature °C
  • Maximum Temperature °C
  • Flash Point °C
  • System Open/ Closed
  • Synthetic
  • -85 °C
  • 260 °C
  • 67 °C
  • Closed
  • Unique Product Features
  • Possibility to use at very low and high temperatures
  • NSF certified

Caltherm UBT

Fluid for extreme low temperature application

  • Nature
  • Minimum Temperature °C
  • Maximum Temperature °C
  • Flash Point °C
  • System Open/ Closed
  • Silicon
  • -100 °C
  • 270 °C
  • 49 °C
  • Closed
  • Unique Product Features
  • Possible to use at extrem low temperatures
  • Inert compound

Caltherm UBVI

Fluid extreme low viscosity at low temperature and ininflammable

  • Nature
  • Minimum Temperature °C
  • Maximum Temperature °C
  • Flash Point °C
  • System Open/ Closed
  • Silicon
  • -70 °C
  • 200 °C
  • 77 °C
  • Closed
  • Unique Product Features
  • Possible to use at very low temperatures
  • Inert compound
  • Non inflammable product

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