Hash is active, as far as I know, orally.

Maybe it was psychological...but I ate .5 of hash oil once and was pretty stoned for a good amount of time.

As for cooking....22-24hrs seems a bit much. And you aren't really supposed to boil it...but simmer it.
UserName_22 Reviewed by UserName_22 on . 22-24 hours? wtf? "The CannaButter is now ready to simmer and cook for 22-24 hours. This amount of time is important. It is required to extract the THC from the finely ground Cannabis. However, you do not want to cook the CannaButter any longer than 24 hours. NO MORE THAN 24 HOURS. After 24 hours the THC will degrade and the butter will go bitter. During this 24 hour cooking period you will need to check on the CannaButter every few hours to ensure that the boil is not to strong and to ensure that the butter Rating: 5