Ibicuruzwa byoherejwe hanze ya morel ibihumyo byagaragaje inzira nziza mumyaka yashize. Nkibikoresho byo mu rwego rwo hejuru, ibihumyo bya morel bishakishwa cyane ku masoko yo hanze, cyane cyane mu bihugu byateye imbere nk’Uburayi na Amerika. Bitewe nuburyohe bwihariye hamwe nintungamubiri zikungahaye, icyifuzo cyibihumyo bya morel ku isoko mpuzamahanga gikomeje kwiyongera.