FreeTherm 500

MULTIFUNCTIONAL BATCH COOKER - Blend & Steam Cook up to 2,000kg/h


Multifunctional and cost-effective batch steam cooking system for producing processed cheese, pasta filata types, sauces, purees, baby food, meat, pet food and more.

» Up to 4x 500kg batches per hour (4x 1,100lb) (5x in some situations).
» Fast CIP for maximum uptime.
» Automatic programs for different uses.
» Incredible flexibility, steam injection.
» Low operating cost, fast ROI.

Multifunctional batch cooker - Blend & steam cook: FreeTherm 500

FreeTherm 500

The Natec Network FreeTherm is a purpose designed batch processing system for a complete range of product types, viscosities and compositions, such as: processed cheese, pasta filata types, sauces, purees, baby food, meat, pet food and more. All ingredients are gently mixed by two independently controlled augers. Product heating utilises unique Natec Network direct steam injectors and the product is de-aerated using an integrated vacuum system. Temperature is accurately monitored by Natec Network unique self-cleaning temperature probes. It can pasteurise.

After processing, the product is discharged into an insulated buffer tank, with an agitator, to wait for delivery to downstream systems. Great flexibility and different options make the FreeTherm a multifunctional batch processing system for a wide range of products.

Download datasheet

Food applications: SOS, Mozzarella, Puree, Sauce, Soup, Meat, Pet food



  • Multifunctional batch processing system for cost effective production, providing excellent finished product quality

Highest flexibility

  • Mixing pattern flexibility increases blending and heating efficiency

Direct steam injectors

  • Effective heating using unique direct steam injectors which eliminate product hotspots

Vacuum system

  • Integrated vacuum system for de-aeration for density control and colour stability


  • Different automatic programs for easy production and CIP
  • Fully enclosed, CIP able, hygienic design ensuring product safety

Central control surveillance system

  • Central control and surveillance system for high operator comfort


For additional functions
or different execution

  • Bin lifter for ingredients addition
  • Level measurement for exact dosage and traceability
  • Steam conditioning unit
  • Powder and ingredient addition systems
  • Shear pump for products like spreadable cheese and plant based products
  • Shaft seal upgrade
  • Integration with existing CIP system
  • Combined discharge and CIP pump
  • Double jacketing of processing vessel
  • Different mixing auger executions available depending on the product requirement
  • Seamless integration with a UHT RotaTherm® cooker (if desired)
  • Further options on demand

Technical data

Machine data

  • LxWxH: 4,000 x 4,300 x 3,150 mm
  • 400 V, 50 Hz, 3 phase
  • Different voltages available

Capacity data

  • 500kg per batch (1,100lbs)
  • Up to five batches per hour (4 normally)
  • Up to 2,500kg/h (5,500lbs/h)
  • Depending on product and temperature

Heating temperature

  • Up to 98 °C (208 °F) by direct steam injection
  • Pasteurisation


  • Steam, air, water and power as required


  • Automatic cleaning via spray balls and integrated systems
  • Can be connected to an existing CIP system


  • All product contact surfaces are AISI 316 L (1.4044) stainless steel