you must have burnt it m8, it dosnt need 30 mins just chop up gear melt the butter in a pan then put your stuff in with the butter and put the whole thing on a LOW heat stir it around abit if it starts turning black take it off the heat the butter should start going a slight green colour. u only need to do this for 5 mins at the most.then the thc should be absorbed by the butter let it cool and harden.