Now that the original post is gone, no one else can share their insight into possible pros, cons, and the like, but oh well.
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Originally Posted by doppey
I'm gonna do it properly and repost it. To richi there's a lot of debate as to the cooking times with cannabis and butter. From my experience more people cook for at least 12 hours, usually 24 and up to 48. As much as i see 48 ans unnecessary, all the people I've encountered insist it takes that long to get everything out of the bud. For those people, this saves A LOT of time and will in theory get about all of the thc possible. (No more arguing.)
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Cooking anything for 48 hours is absolutely ridiculous, and I'm not a chef. 24 and 12 are really not necessary.
Heating marijuana is not even necessary, simply being in the presence of a lipid allows the active non-polar molecules to dissolve. Placing it in vegetable oil and letting it sit will also do the tick. Heat only speeds up the process.
And what do you mean by no more arguing? Who is arguing? I state one opinion, someone else states another. That's what community message boards are for, to learn and gather information. Those people that believe butter and marijuana must be cooked at high temperatures for long periods of time are misinformed, in my opinion of course. My opinion comes from my knowledge in chemistry, and my friends opinion comes from experience with cooking marijuana.
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As far as the crappy filter construction its all that's necessary and it's the comon way to make ISO oil. Most people don't go out seeking MED flow lab filters for a little homecooked oil. I should have mentioned not to put the tape all around cause i think that slows the flow and whatever, but fuck man lighten up.
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This is because isopropanol extraction is not an overly effective method for extraction of cannabinoids. Butane works much better. Hexane works phenomenally (for all non-polar substances).
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Also alot of people have problems with burning the butter, this method eliminates that.
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That is true, like potter pointed out as well, a double boiling method or adding some water to the mix helps reduce the likelihood of burning the butter. My friend owns an electric stove, with a 'warm' setting that is hardly above 40 degrees C (104 F).