In an edible oil processing plant, the steam cooker is one of the most essential pieces of oil seeds pretreatment equipment. Its main function is to condition oil-bearing materials before they enter the oil pressing machine, ensuring higher oil yield and lower residual oil content.

A steam cooker is a type of pretreatment equipment widely used in cooking oil production lines. It prepares oilseeds by adjusting their moisture and temperature, making them suitable for pressing or solvent extraction. Without proper conditioning, oil yield decreases, and residual oil in the cake increases.
For small-scale oil mills (under 50TPD capacity), the steam cooker is often used as a conditioning kettle. This setup saves both costs and workshop space, which is important for factories with limited floor area.
Depending on the raw material, the steam cooker can also function as a softening pot. This is particularly useful when processing oilseeds that require more heat or moisture adjustment before pressing.
The standard steam cooker is designed with five layers and has a height of about 2.5 meters, making it suitable for continuous large-scale production.
The steam cooker is capable of processing a variety of oilseeds, including tea seeds (camellia seeds), soybeans, peanuts (groundnuts), and rapeseeds (canola seeds). However, for soybeans, peanuts, and rapeseeds, QIE Group generally recommends using a drum-type roaster, as it provides better roasting results and more efficient oil extraction compared to a standard steam cooker.
When processing tea seeds, it is critical to heat the material to about 60°C. Without heating, the residual oil content will be much higher, reducing profitability.
By precisely controlling temperature and moisture, the steam cooker activates oilseeds and improves oil extraction efficiency. When paired with a double screw oil press, it significantly reduces residual oil and increases overall oil yield.
Higher oil yield through optimized seed preparation.
Lower residual oil content in the cake, saving production costs.
Flexible operation for multiple types of oilseeds.
Cost-effective and space-saving design for small plants.
Seamless integration with other oil pressing equipment.
As a professional manufacturer with over 40 years of experience, QIE Group provides:
Advanced steam cookers tailored for different oilseeds.
Complete turnkey edible oil processing plant solutions.
Technical guidance and customized equipment layouts for clients worldwide.
The steam cooker is a vital part of any cooking oil production line, especially in projects under 50TPD. By enabling precise control of moisture and temperature, it ensures that oilseeds like tea seeds, soybeans, peanuts, and rapeseeds are optimally prepared for pressing.
As a leading edible oil equipment manufacturer, we offers advanced steam cookers and complete edible oil processing plant solutions to help clients maximize efficiency and profitability.
👉 Are you planning to build an edible oil processing plant or looking for reliable oil pretreatment equipment? Contact us today for customized solutions and professional technical support!