Physical refining process in the edible oil refining machine

Physical Refining process is the most important step in Edible Oil Refining machine and is aimed at creating a fatty acid free, odorless product with a very light hue and very stable against oxidization.
The simplest and most economical way to execute physical refining is to pass the oil through a serious of compartments intermittently placed horizontally and vertically while subjecting it to steam stripping under high vacuum. This ensures all volatiles like fatty acids, aldehydes, ketones, alcohols and colouring agents are removed.
The Physical Refining process is monitored continuously through instrumentation with precise control over all variables like temperature, flow rate, vacuum and time.
After physical refining, the free fatty acids are removed through the process of distillation in one stage of deodorizing. In order to come up with effective results, the crude oil should be thoroughly degummed. This is not applicable with some oil like the oil extracted from cottonseeds. All kinds of refining methods are done with the help of various equipment and machinery, and are used to refine almost all kinds of oil extracted from oil seeds like sunflower seeds, linseeds, groundnuts, sesame seeds, and mustard seeds, etc.
Features of Physical Refining process in the edible oil refining machine
High refinement rate; less oil loss
No waste water discharged
More FFA distilledEspecially suited for highly acidic oils, low gum content oil.


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