How to Convert THCa to THC

How to Convert THCa to THC

18th Jan 2023

THCa flower is a relatively new term in the world of cannabis, at least as far as its mainstream attention is concerned. THCa itself, however, is nothing new. Cannabis produces hundreds of different cannabinoids and one of the most abundant cannabinoids is THCa. As the precursor to THC, THCa has been around for as long as cannabis has been around. Most people associate THC (Tetrahydrocannabinol) with the “high”-inducing cannabinoid, which it is. That said, THC wouldn’t exist without THCa.

THCa (Tetrahydrocannabinolic acid) is actually the precursor to THC. When THCa undergoes decarboxylation, through heat and combustion, a portion of it transforms into THC, making it available for all those who want to reap its benefits. Curious as to how it all works, and how to convert THCa to THC so you can make the most of it? Read on!

Conversion Heating Methods to Turn THCa to THC

The main form of THCa comes in cannabis flower or concentrate extracts. Depending on the legality of the state you live in, it’s either referred to as marijuana or THCa flower/concentrates. As many know, it is as simple as rolling up and smoking. The more convenient ways involve the use of glass pipes. In order to convert THCa to THC, heat is a necessary component:

  • With a lighter flame
  • In an oven for edibles
  • With a vaporizer
  • With a dab rig and torch for concentrates

Decarboxylation for Converting THCa to THC

The process of decarboxylation requires exposure to heat. When vaporizing and smoking, high temperatures quickly decarboxylate THCa’s compounds, which enables your body to immediately absorb them.

Oxygen can contribute to the decarboxylation process as well. This is important as it relates to storing your products. Always keep your flower in an airtight container to prevent premature decarboxylation and maintain the flower’s potency and freshness.

The Temperature and Time Components

The two most important components for using decarboxylation to convert THCa to THC are temperature and time. If you’re doing this to get the THC so you can use it for edibles, you’ll need a temperature between 200 and 245°F. Put your THCa buds on a cookie tray in the oven and heat them for approximately 30 to 40 minutes at 220°F to make edibles.

If you’re looking to use the THCA buds for vaping or smoking, you’ll need to heat them for a longer period of time and at a lower temperature. This keeps the terpenes and cannabinoids intact. The following are some heat/time recommendations…


  • At 130°C, or 265°F for 20 minutes
  • At 110°C, or 230°F for 45 minutes


  • At 130°C, or 260°F for 9 minutes
  • At 110°C, or 230°F for 30 minutes

The Oven Method

If you’re using the DIY oven method to decarboxylate THCa flower, the most important thing is to keep an eye on your cannabis. Oven temperatures should remain consistent, but there’s always a chance that they could fluctuate. Turn down the oven if it smells like something is burning and consider purchasing an accurate oven thermometer.

For guidance on how to make edibles (cookies, brownies, etc.) while converting THCa to THC in the oven, check out our tips:

  • Bring your oven up to temperature (220°F)
  • Line a baking sheet with aluminum foil or parchment paper
  • Either grind or break up the cannabis into the baking mixture
  • Stir the cannabis in the mixture thoroughly
  • Put the cookies or brownies in the oven and heat for 30 to 40 minutes
  • Let the treats cool for 30 minutes at room temperature. The cookies should be golden brown on the top and the brownies (if you’re making them) should have firm edges
  • Enjoy!

Note: Please keep in mind that when converting THCa to THC, you may end up with a product that is not considered legal in all states. Always check with the laws and regulations in your state before purchasing or using products of this sort.

For High Quality, Natural THCa Products, Hemp Generation is Your Go-To Source

Hemp Generation was founded in 2018 to provide people with natural, everyday solutions to help them feel their best. Our products offer relief for the body and the mind, and are specifically designed to contribute to long-term wellness. Some of our top-sellers include:

CBD Oil Tinctures

Vegan Delta 8 Gummies

THCA Flower

Looking to get a head-start on converting THCa to THC with edibles? Why not begin with Orange Cream THCA Hemp Flower? The indica-dominant strain of premium hemp flower baked into these cookies is described as having an earthy aroma that is both spicy and sweet.

Hemp Generation always has been and always will be dedicated to changing traditional healing methods by using high-quality, natural alternative products. We concentrate on providing both long-term wellness and education.

For questions or additional information, please feel free to contact us at 919-371-1528. You can also connect with us through LinkedInFacebookYouTube, and Instagram.

DISCLAIMER: The statements made regarding these products have not been evaluated by the Food and Drug Administration. The efficacy of these products has not been confirmed by FDA-approved research. These products are not intended to diagnose, treat, cure or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from healthcare practitioners. Please consult your healthcare professional about potential interactions or other possible complications before using any product. The Federal Food, Drug, and Cosmetic Act requires this notice. Use products responsibly and at your own risk. Full Spectrum CBD Hemp products contain cannabinoids and some products contain trace amounts of THC that are below the federally legal limit. Hemp Generation is not responsible for any failed drug test. We encourage you to know the laws in your region or state. Upon purchase you assume all responsibility of the product and hold Hemp Generation LLC exempt from legal responsibility for one’s actions.