Spiral Oil Press

Oil is extracted from a number of fruits,nuts and seeds for use in cooking and soap making or as an ingredient in other foods such as backed or fried goods.Oil is a valuable product with universal demand,and the possible income from oil extraction is therefore often enough to justify the relatively high cost of setting up and running a small scale oil milling business.

Raw material preparation
Oilseeds and nuts should be properly dried before storage,and cleaned to remove sand,dust,leaves and other contaminants.Fruits should be harvested when fully ripe,cleaned and handled carefully to reduce bruising and splitting.All raw materials should be sorted to remove stones etc.and especially moldy nuts,which can cause aflatoxin poisoning. When storage is necessary,this should be in weatheroof,ventilated rooms which are protected against birds,insects and rodents.Some raw materials (for example groundnuts,sunflower seeds) need dehusking (or decorticating).Small manual machines are available to give higher production rates than manual dehusking.