Boiling works very good, but it leaves a coating of resin on whatever u use to boil it in; and it reeks up the whole house... get some cleanign agent like 420 bowl cleaner or something, designed for cleanin resin out... that watses it tho, the best would be to heat up by dry-hitting it then scraping it out with dental tools, and rool it into a ball and SMOKE THAT SHIT!