Filtration of oil is better than bigger oil mills giving transparent pure natural & "at a stretch convincing" appearance to the oil.Decorticator has special provision for shelling groundnut for seed purpose without breakage. Highly experienced mill operator can extract oil without cooking from some oilseeds such as rape seeds, cottonseed, sesame, sunflower, copra etc. For Groundnut, Palm kernel, Castor seed, cooking is essential.