Cannabis decarboxylation: THC in edibles – temperatures, times & best methods

Before you use cannabis inedibles or oils, you need to decarboxylate it – a process that converts THCA into potent THC. Without this step, you won’t get the desired effect. Have you searched for “decarboxylation”? Here is a simple and detailed explanation of why decarboxylation is so important, how it works and which methods are most suitable.

What is decarboxylation of cannabis?

Yesterday we already had THC-infused food as a technical term when it comes to cannabis edibles. In a nutshell:

If you want to use cannabis for edibles or oils, you must first decarboxylate it. Without this step, there will be no effect, as raw cannabis mainly contains THCA, which is not psychoactive.

THCA is only converted into THC through heat – this is the substance or cannabinoid that provides the known effects. This process is called decarboxylation and is crucial if you want to use cannabis properly.

How to decarboxylate correctly?

To decarboxylate cannabis properly, you need to heat it slowly and evenly. Too high temperatures can destroy important active ingredients, while too low temperatures are not sufficient to convert the THCA into THC. The optimal method for complete activation of the active ingredients looks like this:

  • Preheat the oven to 110-120°C
  • Finely grind the cannabis so that the heat is evenly distributed
  • Place on a baking tray lined with baking paper
  • Heat for 20-40 minutes, turning occasionally

Typically, as here, on a baking tray in the kitchen.

This method ensures that the cannabis is fully decarboxylated and ready for edibles, oils or other applications. If you need a particularly fine dosage, you can process the cannabis in oil or as cannabis butter after baking.

What happens during decarboxylation?

During the decarboxylation of cannabis, a chemical change is triggered by heat. The inactive THCA loses a carboxyl group (“A”) and is converted into THC. This is how the cannabis really unfolds its effect. Without this step, a cannabis edible would have no noticeable effects.

Temperature plays an important role. Too low heat is not enough, too high heat can destroy terpenes, which are partly responsible for the aroma and effect of cannabis. You should therefore stick to these temperatures:

  • 110-120°C: Best temperature for complete decarboxylation
  • 130°C+: Can destroy terpenes, which affects taste and effect
  • 90°C: Partial conversion, mild effect

Why is decarboxylation important?

If you consume cannabis without decarboxylation, the THCA remains in its inactive form. This means that you won’t feel any effect if you simply add it to a prescription.

When smoking or vaporizing, decarboxylation occurs automatically due to the heat.

But for edibles, cannabis oil or tinctures, you have to carry out the process consciously.

Decarboxylation for various applications

There are different methods depending on how you want to use cannabis:

  • For edibles: classic decarboxylation in the oven
  • For oils and butter: slow heating directly in fat
  • For tinctures: Gentle heating over several hours

If you want to process cannabis properly, decarboxylation is an essential step. It ensures that the active ingredients are activated and you can enjoy the full effect.

Eating cannabis? “Edibles” is the magic word

Now you know how heat turns THCA into THC! If you’ve been wondering all this time, what exactly are edibles? Here’s our big list of all the edibles you can typically buy. In states like California (USA), buying THC is quite normal, but even in the Netherlands, you can already buy them legally and in a wide variety. Fruit gums, lollipops, but also what everyone loves, chocolate!

Buy ready-made, make it yourself, read more about here: