Umuryango w’Ubumwe bw’u Burayi n’Ishami ry’Ubuhinzi rya Leta Zunze Ubumwe za Amerika biteganya: gukora gelatin nyuma y’iminsi 3 yo gusohora aside, iminsi 35 yo gusohora ivu, umuti wa gelatin nyuma yo gusukura ku bushyuhe bwa 138°C mu gihe cy’amasegonda 4 kugira ngo haboneke umusaruro utekanye (ni ukuvuga udafite BSE). Ariko, ikigo cyacu gikoresha uburyo bwo gukora hydrochloric acid excavation ifite igipimo kirenga 3.5% mu gihe cy’iminsi 7, gusohora ivu mu gihe cy’iminsi 45, n’umuti wa kole ushyirwamo umuti ku bushyuhe bwa 140°C mu gihe cy’amasegonda 7.