Well depends on how you do it. Yes it needs to be heated. This is why the firecrackers work, or cannabutter. I think its probably like a gram more if ur gonna eat but not positive. It can take 30mins-60mins depending on if ur stomach is empty or not. Personally in my experienecs it never really worked that well. Ive had firecrackers(THEY SUCKED BUT I THINK IM JUST DUMB) Ive had cannabutter put into cake batter(lol just ate the cake batter, was good but hurt my stomach) And then it was made into Puppy chow,the chex stuff(that gave me a small buzz)
Overall from my expericenes, eating it SUCKS! lol just my opinon