Decarb time calculator

Decarboxylate your cannabis properly
Processing temperature:
120 °Cor248 °F
Full decarb time:

75 min

Don't forget to preheat the oven to 120 °C (248 °F) before you put the cannabis inside.


About the Decarboxylation time calculator

If you want to create really potent THC-infused edibles, then proper decarboxylation is perhaps the most crutial step in the entire process. It can enhance the amount of THC in your product by more than 500%, which means that it can save four fifths of your cannabis.

The most common way of decarboxylation is by placing your ground dried cannabis into the oven and “baking” it for a specific amount of time. That may sound easy, but if you simply eyeball the time needed or use an inaccurate decarb chart, you can easily spoil your cannabis, because the THC starts degenerating into other cannabinoids in a matter of minutes, if you leave it in the oven for too long.

And that’s exactly the moment when this calculator really comes in handy - it’s based on scientific studies to provide the most accurate results available, overpreforming the common decarb time charts by far.

Usage guide

Simply choose the exact temperature that you’ll be using for your decarb process, and the calculator computes the time to reach maximum level of THC. Make sure to double-check the temperature that you are working with, as just a small difference in time or temperature can mean huge drop in THC content.

Leave the dried ground cannabis for the exact time period suggested by this app, and you’ll end up with edibles of incredible potency 🔥

Temperature range limitations

This tool is limited to temperatures between 208 °F (98 °C) and 302 °F (150 °C), because lower values would require more than four hours to complete the decarb process, and any higher temperature would cause the THC to evaporate, ruining the process.

Scientific background

The computations are based mainly on this paper:

European Industrial Hemp Association (EIHA) paper on:
Decarboxylation of Tetrahydrocannabinolic acid (THCA) to active THC
Authors: Kerstin Iffland, Michael Carus and Dr. med. Franjo Grotenhermen, nova-Institut GmbH
Hürth (Germany), October 2016

The paper is available online here.