• Retorts/Autoclaves
  • Shuttle And Loading/Unloading Machine
  • Vacuum Fryer

Direct Steam Retort

Product Details

Product Description

Innovaster Direct Steam Retort will be used to process rigid containers such as cans. Retort chamber should be saturated at the beginning for air is considered an insulating medium and all air will be evacuated from the retort by flooding the vessel with steam and allowing the air to escape through vent valves. There is no overpressure during the sterilization phases of this process,and air-overpressure will be applied during the cooling steps to prevent container deformation.


Working Principle

In the beginning, steam is injected into the retort vessel through the steam spreader pipes, and air escape through vent valves. When both time and temperature conditions established in the process are met simultaneously, the process advance to come-up phase.In the whole come-up and sterilization phase, retort vessel is filled with saturated steam without any residual air in case of any uneven heat distribution and insufficient sterilization. The bleeders must be open for the entire vent, come-up, cooking step so that the steam can form convection to ensure the temperature uniformity.


In a Saturated Steam process these steps are:    

1. Come Up Vent Open  

2. Come Up Vent Closed    

3. Cook (A Sterilization Step)    

4. Pressure Cool Fill    

5. Pressure Cool    

6. Atmospheric Cool    

7. Drain

Equipment features

  • direct steam retort -features 1

    Siemens S7 programmable logical controller (PLC) with panel view in English with Automatic Alternative Process Control Honeywell Circular Chart Recorder Optional

  • Steam Retort -features 2

    Steam valve-Spirax Sarco Pneumatic Modulating Control valve assembly complete with Pneumatic positioner. Pump with mechanical shaft seal for cooling water circulation

  • Steam Retort -features 3

    Retort diameters set between 900mm and 2000mm capacity ranging from 1 to 10 baskets.

  • direct steam retort features 4

    Hydraulic slide-up doors with interlocking system for safety once vessel has pressure inside (optional). Or Manual Swing Open Door.

  • Retort Vessel

    Totally built in stainless steel grade SUS-304 or SUS316 optional

  • 9 Retort Vessel Insulation

    Retort vessel is insulated on its whole length with silicate (20mm thickness) and polyurethane foam (20mm thickness), coated with a sheet of 0.6 mm stainless steel in order to avoid heat losses

Packages Type of Applications

  • Canned Fish, Canned Meat, Canned Sardines, Canned Tuna, Canned Luncheon Meat

    Canned Fish, Canned Meat, Canned Sardines, Canned Tuna, Canned Luncheon Meat


Diameter (mm)
Vessel Length (mm)
Basket Qty. (pcs)Volume (m³)Basket Dimensions (mm)
Retort diameters set between 900mm and 2000mm capacity ranging from 1 to 10 baskets. 

Constant improvement and engineering innovations mean these specifications may change without notice.

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