Ekwesịrị ibuga ihe ndị na-ebu mmanụ na shells dị ka groundnuts, mkpụrụ osisi sunflower, mkpụrụ owu, na teaseeds, ga-ebuga ya na mkpụrụ osisi dehuller ka a kpụchaa ya ma kewapụ ya na mpụta ha tupu usoro mmịpụta mmanụ, a ga-apịa ya iche iche na kernels. .Hulls ga-ebelata mkpokọta mmanụ a na-amịpụta site n'ịbanye ma ọ bụ idowe mmanụ n'ime achịcha mmanụ a na-etinye.Ihe ọzọ bụ, wax na agba ogige ndị dị na akpa ahụ na-ejedebe na mmanụ a na-amịpụta, nke na-adịghị mma na mmanụ oriri na ọ dị mkpa ka ewepụ ya n'oge usoro nhazi.A pụkwara ịkpọ igbutu ihe mkpofu ma ọ bụ icho mma.Usoro dehulling dị mkpa ma nweta uru usoro, ọ na-eme ka mmepụta mmanụ na-emepụta mmanụ, ikike nke mmepụta ihe ma na-ebelata iyi na onye na-achụpụ, na-ebelata eriri ma na-abawanye ọdịnaya protein nke nri.