How To Decarboxylate Your Weed

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Prime C

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How To Decarboxylate Your Weed

Raw cannabis contains a lot of THCA which is not psychoactive (and what’s the fun in that?). When you smoke weed, the THCA molecule loses its carboxylic group (COOH) in the form of water vapor and carbon dioxide and becomes THC. Long story short, THCA becomes THC and your cannabis becomes psychoactive. This process is called decarboxylation or decarbing.

When you smoke or vaporize marijuana, the cannabis is decarbed by the heat. If you ingest cannabis and want the full psychoactive effect, you need to first decarb your cannabis before you cook with it.


The lower the temperature, the longer it’s going to take to decarb your cannabis. Keep in mind that a lower temperature will allow you to lose less terpenes.

What are Terpenes?

Terpenes are the pungent oils that color your cannabis with distinctive flavors such as berry, mint, citrus and pine. There are many medicinal benefits to terpenes; some will successfully relieve your stress while others will promote focus and awareness.

Table: Decarboxylation Temperatures and Times

TemperatureHeating ModePlant Material TimeKief / Hash TimeCannabis Oil
310FOven10 – 18 minutes5 – 10 minutes
250FHot oil bathUntil bubbles taper off
240FOven50 – 60 minutes30 – 40 minutes
212FBoiling water bath90 minutes90 minutes


Image courtesy High Times

Decarboxylation Methods:

Tip: Grind your cannabis first! A course grind will allow your weed to evenly dry without losing potency from over grinding.


  1. Preheat your oven (see table above). Use an oven thermometer to check the temperature.
  2. Sprinkle your cannabis in a pie plate and then cover it well with silver foil by crimping the foil along the edge of the plate.
  3. Place in the oven (see table above) – less time for older drier material, more for fresher material.
  4. After required time, turn the oven off, and remove cannabis. Let it cool down slowly before you unseal the container to allow any cannabinoid/terpenes vapor to reabsorb into the cannabis.


  1. Preheat oven (see table)
  2. Sprinkle hash/keif on pie plate, cover with silver foil and crimp foil along edge of plate. Place sealed dish in oven for (see table).
  3. Remove plate and let it cool down slowly without removing cover to allow any vapors to reabsorb into cannabis.

Boiling Bag method:

  1. Place the cannabis flower/keif/hash into a boilable cooking pouch. Seal it.
  2. Place in boiling water for 90 minutes. Make sure water does not boil dry.
  3. Take bag out of water. Let it slowly cool before opening.

Cannabis Oil

  1. Place heat proof container of cannabis oil into a cooking oil bath (canola oil works well). Heat cooking oil to 121C/250F.
  2. Stir cannabis oil to break up bubbles.
  3. Remove cannabis oil from heat when bubble formation starts to slow down — or leave on heat until all bubbles stop for increased sedative effect.


The Only time I'll ever Decarboxylate my BHO is when I'm making Canna Caps infused with Coconut Oil for myself and patients.

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+1 Coconut oil >>>>>

How long can you leave it in a capsule btw before the cap melts?? Ive never actually tested that out.. I just leave it in a glass jar till i need it.

Tasty lookin caps btw :D Id like to eat ohh.. Them all!


Thanks @LittleDabbie ….. I store my Capsules in an empty Pill bottle and then store that in the refrigerator so that the Coconut Oil will solidify and not leak everywhere.

I then store the Capsules in the fridge until they are ready to be used.

If I am taking the Capsules to a far location or if I am sending them in the mail, I will just simply place them into a cooler with an ice pack to keep the temps down so the Coconut Oil stays solid.


Good idea!!!!!!! Did put my bottle of oil in the fridge once and that turned solid not sure why i didn't remember you could do the same with caps lol
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