Clarification Of Oil-Oil Filter

Crude(freshly extracted)oil contanins moisture,and fiber,resins,colors etc. from the plant material,which make it darker and more opaque.These materials are removed by clarification either by letting the oil stands undisturbed for a few days and then separating the upper layer,or by using an oil filter.The oil is filtered through a cloth and heated briefly to 100 to boil off any remaining traces of molsture.This is usually sufficient to meet the quality needs of customers and give a shelf life of several months when correctly packaged.However,the oil requires additional refining stages of de-gumming.neutrallsing and de-colouring to have a similar quality to commercially refinde oils,and these stages are difficult to complete at a small scale.