If you're wanting to make edibles or tinctures from cannabis, decarboxylation is a crucial step! Decarbing the cannabis you use in medibles and tinctures will make them safer and more effective.
Decarboxylation happens very slowly when cannabis is cured, but we can use an oven to speed up and complete the process. Decarbing your cannabis allows you to convert the THCA found in your dried buds and trim to THC. This will allow your medibles and tinctures to be more potent and take effect more quickly. Decarbing most often occurs when cannabis is smoked, so this process doesn't have an opportunity to occur when making butters, oils and tinctures - you have to do it beforehand!
Beyond turning the THCA found in cannabis to THC, decarboxylation also has one other awesome benefit: lowering the risk of botulism in your medibles. If you don't properly decarb your cannabis, the moisture from it can cause botulism bacteria to grow in your tinctures, butters or oils. And I'm assuming you probably don't want that on top of why you're medicating with cannabis already. ;)
For more information on decarboxylation and also a nice scientific experiment, I recommend reading this article.
In this instructable I'll cover how we choose to decarboxylate cannabis - there are loads of ways to do it, but this is our preferred method.
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Step 1: Tools + Materials
To do this you'll need:
- an oven set to 220 F/105 C
- a baking sheet
- parchment paper
- sugar leaf trim, ground bud, or kief
If using sugar leaves or kief, no other processing is necessary. If you're using full buds, grind them roughly before proceeding. You want things to be broken down well so the cannabis releases all the moisture it's holding.
Today I'm decarboxylating 40 g of Doctor Who trim - we're going to turn it into coconut canna oil.
Step 2: Prep
Preheat the oven to 220 F / 105 C.
Place a sheet of parchment paper on your baking sheet and spread your cannabis out over it. If you see any large pieces, break them up with your hands.
If you have more cannabis than will fit nicely on one sheet, divide it in half. You just want one fairly thin layer. If you crowd it it will not dry out properly.
Step 3: Decarboxylate
Place the baking sheet in the oven and let it hang out for 25 minutes.
For well dried trim, kief, and bud this should be long enough. However, if the cannabis you're using is more fresh you may want to take it an additional 25 minutes.
A hygrometer can be useful for double checking to see how much moisture is left, too - just put the cannabis in a closed jar or bag with it.
Once the cannabis is nice and dry, let it sit out on the counter until it's entirely cooled. Now you can use it for whatever medible application you'd like!
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