Midowga Yurub iyo Waaxda Beeraha ee Maraykanka ayaa qeexaya: wax soo saarka jelatin ka dib 3 maalmood oo aashito ah, 35 maalmood oo dambas leaching ah, xal jelatin ka dib jeermiska 138 ℃ 4 ilbiriqsi ee alaabta ammaan ah (sida free BSE).Si kastaba ha ahaatee, shirkadeena waxay isticmaashaa habka wax soo saarka ee leaching acid hydrochloric iyadoo uruurinta in ka badan 3.5% ugu yaraan 7 maalmood, dambaska leaching ugu yaraan 45 maalmood, iyo xal koollada jeermis dilay at 140 ℃ 7 seconds.