Cold pressed oil refers to a method of oil extraction where the oilseeds are crushed and pressed (without using heat) to extract oil. The entire process involves pressure and no heat and that is what makes this oil healthier than any other form.
It is all about filtration of oil through various chemicals and heat that makes the final output very light and shiny in texture. The mechanical process makes the oilseeds lose the majority of nutrients that the human body needs on a daily basis. They are rich in fat and devoid of nutrition completely!
They both come from the same source (oilseeds) but go through different processes. The process of extracting oil through cold-pressed method is basic and mechanical. It is similar to the way we extract juice from a manual juicer. No wonder, nutrition of the oil is retained.
cold pressed oils are healthier than refined oils. They are rich in antioxidants, vitamin E, and oleic acid. Also, they are free from chemicals added to oils during refining process. They are also more aromatic and hence add more taste to the dishes.
The oil-seeds are hand-picked and dried under the sun and crushed in Wooden Ghani and this oil is kept in Sunlight for 2 days for the sediments to get settled. The AIIMS doctor report on oils emphasises that the Oil should have a particular smell & it should be sticky.