Revtech Process Systems : Global industrial solution for heat treatment of bulk solids and gases
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Herb and spice steam sterilization

Revtech combines vibration transport, heating by contact with a hot surface and a small amount of steam to process all kinds of herbs and spices: pepper, coriander, paprika, parsley, basil, mint, chili, chives, oregano, ginger, thyme...

Revtech herbs and spices sterilization


The technology

herb and spice pasteurisation


Great added values for your products

  • Continuous and fully automated process avoiding recontamination
  • Validated and guaranteed microbiology quality:
    • Complete eradication of pathogens (Salmonella, E Coli, Coliforms, yeasts and moulds…),
    • High reduction of the total plate count,
    • Every unit can be validated by independent authorities.
  • Preservation of the organoleptic properties (color, texture, taste…)
Revtech heat treatment of spices

How can Revtech eradicate pathogens and preserve the qualities at the same time? >Read more

Heat and steam are required for pasteurization. To preserve the organoleptic properties, Revtech perfectly controls the process:

  • Perfect homogeneity of treatment – mixing is very efficient as every particle progresses along the spiral with about 4000 jumps. This way every particle is treated, no particle is over treated.

  • Very small amount of steam is used – the particles are first heated by the contact with the hot spiral and only around 5% of steam is injected at the end of the process to complete pasteurization.


 Benefits for your factory

  • Low energy consumption: ~ 80 kW.h for 1 ton of product ie. less than 0,01€/kg.
  • Cleaning is vastly simplified (about 1 to 2 hours) using CIP techniques and/or pyrolysis. There are no dead zones in the machine, which consists of one continuous smooth stainless steel pipe.
  • No dust extraction equipment required: a direct exhaust to the atmosphere is sufficient.
  • Robust technology and negligible maintenance costs.
  • Continuous and fully automated process requiring little operating personnel (1 person can run the complete line). 


Revtech herbs and spices steam sterilization
Complete spice and dried vegetable pasteurization line