We need a Crock Pot, butter (real butter is best), trim or bud, and water. Later you will also need a large pot, strainer, cheese cloth, and storage container.
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I usually cook with trim and use the ratio of 1oz of trim to 1lb butter. When using bud, I use 1/4oz bud to 1lb butter. For this batch I'm using 2oz of trim and 2lb butter. Your results will vary depending on how strong your trim or bud is, and you can only dial it in through experimentation. Final product too strong? Dilute by melting in a pot with more butter. To weak? Run it again with more trim / bud. You can't really screw it up.
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This photo is very important. Notice how fine the trim is ground up. The first part of the chemistry is releasing the trichomes from the trim / bud. You will release more of the active ingredients in the marijuana if the bud is finely ground and all of the trichomes are exposed. You can dry out your trim / bud until it's crispy, then put it in a ziploc bag and crunch it up. If it's not crispy dry, you can freeze it in a ziploc bag and then crunch it up. Just crunch it up, that's the message.
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So here is our starting mash. I put all eight sticks of butter in the bottom of the pot, add the 2oz of trim, then add 2.5 quarts of water. The amount of water isn't really important, but you want enough to top off your Crock Pot and wet all of your trim / bud. Mix it a bit to make sure everything is wet, then put on the cover and turn your crock pot on low.
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Here is our mash after an hour or so. Notice that the butter has melted and is blending with the water and trim / bud. Stir once in a while, but don't go crazy. The crock pot does its best work with time, the lid on, and the power on low. I probably only stir the mash three or four times over the whole process. Not quite "set it and forget it", but close.
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Here is our mash the next day. Yeah, the next DAY. I usually cook for 24 hours. The simplified chemistry is as follows: The active ingredients in marijuana are fat soluable, not water soluable. The butter will absorb the active ingredients released from the marijuana, which is broken down by the water mash mix. So now we have our potent butter, how do we seperate it from the water and mash?
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Position a large pot and strainer over each other.
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Drape cheese cloth (available at your grocery store with baking or canning supplies) across the strainer. This is optional, but if you don't strain really well you may have a bitter, weedy taste to your butter.
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Strain. I start by using a ladel to get most of the mash out of the crock pot. Once you have all of the mash in the strainer and all of the liquid out of the crock pot, just let it sit for 15 - 30 minutes. Every drop that drains out is precious! USE CAUTION, the mash will be VERY HOT!! After you have waited to let the strainer drain, gather the edges of the cheese cloth and squeeze out any remaining liquid. It will be mostly butter as the trim / bud and butter LOVE each other. Trash or compost your trim / bud mash. It is completely spent at this point.
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Here is the pot with our water / butter mix. Notice the bubbles seem to be looking at me...
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Put the mix in your refrigerator overnight. The butter is lighter than the water and will float to the top and solidify. I didn't show the lid to the pot. If you don't cover the pot, your whole fridge will smell like bong water. At least that's what my wife told me, lol.
Edited by ero, 23 January 2011 - 08:41 PM.