Understanding Why and How to Decarb Weed

How to decarb weed

 If you’ve ever consumed raw cannabis flowers with the expectation of experiencing a high, you likely encountered disappointment. The reason behind this lies in the necessity of decarboxylating your cannabis before consumption. In its raw state, cannabis contains minimal amounts of THC, the primary compound responsible for the psychoactive effects associated with being “high,” and CBD, another cannabinoid recognized for its anti-inflammatory and anxiety-relieving properties. The initial cannabinoids in raw cannabis are THCA and CBDA, both featuring an extra carboxyl group in their molecular structure, which undergo a transformation to THC and CBD through the process of decarboxylation.

Curious about how to decarb weed? The process involves applying heat to activate the cannabinoids in cannabis. By doing so, you convert THCA and CBDA into THC and CBD, unlocking their full potential. Whether using an oven, stovetop, or other methods, decarbing weed is an essential step for those seeking the desired effects of THC and CBD in their cannabis consumption.

What is decarboxylation?

What exactly is decarboxylation? Decarboxylation, often pronounced as de-carb-OX-yl-a-tion, is a crucial process that activates the psychoactive compounds within the cannabis plant, leading to the experience of a heightened state when consumed. Within the cannabis plant, there exists THCA, a compound that lacks the potency to induce a high. To unlock its psychoactive potential, THCA must undergo a transformation into THC. Heat serves as the catalyst for this conversion, whether it be the flame of a lighter, the atomizer in a vape pen, a torch used with a dab rig, or the heat from an oven in the case of preparing edibles.

The chemical structure of THCA within the plant includes an additional carboxyl ring, which inhibits its ability to induce a high. Through the application of heat, this carboxyl ring is removed, a process known as decarboxylation, giving rise to the term itself.

How does decarboxylation work?

Decarboxylation stands as the crucial process of subjecting cannabis flowers to heat to unlock the psychoactive potential of cannabinoids within the plant.

This intricate process involves several key mechanisms:

  • Heat Application: Raw or cured cannabis flowers inherently contain non-psychoactive cannabinoid acids like THCA and CBDA. Although these compounds harbor potential therapeutic properties, they lack the ability to induce a high. To unleash the psychoactive effects, heat must be applied to detach the carboxyl group (COOH) from the molecules, transforming these acids into their active THC and CBD forms.
  • Temperature and Time: The success of decarboxylation hinges on precise temperature and duration parameters. Typically, cannabis is exposed to temperatures ranging between 200 – 290°F (104 – 118°C). The duration varies between 7 – 60 minutes, contingent on the chosen temperature. Lower temperatures necessitate more time, while higher temperatures expedite the process.
  • CO2 Release: The detachment of the carboxyl group results in the release of carbon dioxide (CO2) as a byproduct. This process signifies the conversion of cannabinoids within the plant material into their active states. Upon completion, the cannabis flower boasts a heightened concentration of active THC and CBD, elevating its potency for applications in homemade infusions, edibles, tinctures, or topicals.

How to decarb weed

At what temperature does decarboxylation occur?

Decarboxylation occurs within the temperature range of 200-245ºF. For optimal results when making edibles, it is recommended to heat buds at 220ºF for 30-40 minutes.

In the context of edibles, the decarboxylation process is conducted at a lower temperature compared to smoking and vaping. This lower temperature, combined with an extended duration, helps preserve the integrity of cannabinoids and terpenes during infusion. Terpenes, being volatile, can evaporate at higher temperatures, potentially leaving undesirable flavors and aromas in the final product.

It’s crucial to avoid heating cannabis in an oven above 300ºF when decarboxylating for edibles. Temperatures exceeding this threshold can lead to the degradation of valuable cannabinoids and terpenes, rendering the infused material less potent and ineffective in delivering the desired psychoactive effects when incorporated into butter, oil, or other mediums.

Different Ways to Decarboxylate Cannabis

There are various methods to decarboxylate cannabis, with combustion or smoking being the quickest and most straightforward approach. This can be achieved by applying a flame to a pipe, joint, or a handmade device. For those who prefer an alternative to smoking, vaporization of cannabis using portable vaping devices is another effective method for decarbing.

It’s important to note that decarboxylating cannabis can generate a strong aroma in your home. The intensity of the smell is influenced by factors such as the size of your house and the effectiveness of ventilation. Typically, the smell tends to dissipate within 30 minutes to an hour after the decarboxylation process is completed. Some decarboxylation available in the market claims to produce minimal to no smell during the process.

How to decarb weed in an oven

Decarbing weed in an oven requires careful attention to temperature due to the oven’s inherent fluctuations, where the temperature dial serves as more of an average than an exact measure. Given that ovens can vary by up to 20 degrees, it’s crucial to monitor the cannabis closely. If it browns too quickly or emits a burning smell, adjusting the oven temperature is recommended. For consistent results, investing in an oven thermometer is advisable, especially if incorporating cannabis regularly into your cooking.


  • Baking sheet
  • Parchment paper or aluminum foil
  • Oven
  • Cannabis
  • Cannabis grinder (optional)


To begin, set the oven temperature to 220ºF, placing the oven rack in the middle to achieve an optimal decarboxylation temperature. This is important as ovens tend to have varying temperatures, being hotter at the top and cooler at the bottom. Line the baking sheet with parchment paper or aluminum foil, and lightly break up or grind the cannabis onto it, avoiding an overly fine consistency to prevent burning. Heat the cannabis for 30-40 minutes, stirring at least once during the process. Afterward, let the decarboxylated cannabis cool for 30 minutes at room temperature, ensuring it attains a lightly toasted and golden-brown appearance. Once the cannabis is cool enough to handle, you can incorporate it into butter, oil, or another infusion base. Alternatively, store it carefully in a container for future use.

How to decarb weed in the Microwave

Decarbing cannabis in the microwave, while not the most ideal method, can be effective if you’re short on time. However, it requires close attention as buds can burn quickly. It’s advisable to start with a small test batch to get the timing right. Here’s the microwave decarbing procedure: Grind or break up your cannabis by hand. Spread the herb evenly into a microwave-proof glass dish. Microwave the buds on medium for around 90 seconds. Mix the cannabis in the bowl and zap it for another 60 seconds. The finished buds should be golden brown but not charred. With these methods, you’re now equipped to decarboxylate cannabis at home, preparing you for making butter, oil infusions, edibles, or even tinctures for topicals.

Understanding how to decarb weed is crucial for unlocking its full psychoactive potential. This process involves applying heat to activate cannabinoids like THC and CBD, transforming non-psychoactive forms into their active counterparts. Whether using an oven, microwave, or other methods, mastering how to decarb weed empowers individuals to create potent infusions for various cannabis products, from edibles to tinctures, ensuring a more enjoyable and effective experience.

Understanding Why and How to Decarb Weed

How to decarb weed in a Mason Jar

Decarboxylating weed in a Mason Jar offers a discreet method to minimize the odor of cannabis in your kitchen while preserving valuable compounds. Utilizing this approach ensures that any volatile compounds released during the decarbing process are contained within the jar, enhancing the final product’s potency when used for infusions.

Follow these steps for Mason Jar decarboxylation:

  • Set the oven temperature to 220°F.
  • Grind or break up your cannabis flower.
  • Place the prepared flower in a mason jar and lightly screw on the lid.
  • Dampen a kitchen towel slightly and lay it on a baking sheet. Position the mason jar on its side on the towel.
  • Put the baking sheet on the middle rack of the oven for an hour.
  • Every 15 minutes, carefully remove the mason jar using oven mitts, shake it to ensure even exposure, and return it to the oven.
  • After an hour, take the jar out of the oven and allow it to cool for 30 minutes before use or storage.

This method not only streamlines the decarboxylation process but also offers a discreet and efficient way to enhance the potency of your cannabis infusions.

How to decarb weed in a Sous Vide

Decarboxylating weed with a Sous Vide immersion circulator or precision cooker provides an efficient and low-odor method, preserving plant compounds and flavors while ensuring precise temperature control throughout the process.

Follow these steps for Sous Vide decarboxylation:

  • Grind your cannabis flower before placing it in a sous vide bag.
  • Vacuum-seal the sous vide bag.
  • If you have a sous vide immersion circulator: Fill a pot with water, set the circulator to 203°F, and submerge the sealed bag for 90 minutes.
  • Alternatively, you can achieve this with a sous vide precision cooker.
  • If you don’t have a sous vide precision cooker: Fill a saucepan, bring water to a boil, reduce heat, and maintain the temperature between 203-212°F. Submerge the sealed bag for 90 minutes.
  • Carefully remove the bag from the water, considering its high temperature. Let it cool and dry for at least 20 minutes.
  • Take out the decarboxylated flower and use it immediately or store it for later use.

This method not only minimizes odors but also ensures optimal preservation of cannabis compounds and flavors, providing a convenient way to enhance the effectiveness of your infusions.

How to decarb weed with Decarboxylator

Decarbing weed with a Decarboxylator simplifies the process, providing automated temperature and time control for efficient decarboxylation. Unlike traditional methods that require close monitoring, these devices offer convenience and ease of use, making them a worthwhile investment.

Follow these general steps for using a Decarboxylator:

  • Plug in the device.
  • Place the cannabis flower directly into the decarboxylator. Some models may require you to use a container, removing it, placing the flower inside, and then putting it back into the device.
  • Press the button and wait for the device to complete the decarboxylation process.

Note: Consult the specific instructions provided with your decarboxylator, as steps may vary depending on the device and brand.

Several recommended decarboxylator brands include Levo II, Ardent FX, Ardent Nova, Magicalbutter DecarBox, and MB2e MagicalButter Machine. Some models even allow you to make infusions directly within the unit, such as infused butter, oils, and tinctures, enhancing the versatility of these devices.

How to decarb weed Naturally

Decarbing weed naturally occurs over an extended period as THCA gradually converts to THC. A noticeable sign of this process is the browning of older weed. However, this natural decarboxylation is extremely slow. If you intend to use cannabis for making edibles and want to maximize its potency, it’s recommended to opt for a more efficient decarbing method.

Once the decarboxylation process is complete, your cannabis becomes activated and ready for use. Whether you’re exploring various cannabis recipes, many of which require prior decarbing, always exercise caution to avoid burning the cannabis. Burning can compromise the availability of THC and CBD, rendering it ineffective for your intended use.

How to use decarbed weed

Once you’ve successfully decarboxylated weed, a plethora of options await for integrating it into various applications:

Infusion into Oil or Butter:

  • Transform your decarboxylated weed into oil or butter, creating a versatile foundation for cooking or baking. This becomes a fundamental element for crafting homemade cannabis edibles, offering a broad spectrum of culinary possibilities.

Tincture Creation:

  • Craft alcohol-based cannabis extracts, commonly known as tinctures, by immersing decarboxylated weed in high-proof alcohol for several weeks. These meticulously crafted tinctures can be seamlessly added to beverages or used sublingually (under the tongue). For detailed instructions, consult our comprehensive guide on creating weed tinctures.

Topical Formulations:

  • Infuse oils or creams with decarboxylated weed to produce cannabis topicals. These specially formulated topicals can be directly applied to the skin, presenting the potential for localized relief. The process allows for the incorporation of cannabis benefits into skincare routines.

Capsule Convenience:

  • Simplify your dosing regimen by placing decarbed weed directly into capsules. Crafting your own weed capsules provides a convenient option for individuals who prefer alternatives to smoking or oral consumption. This method ensures precise and controlled intake.

When incorporating decarboxylated weed into your routine, begin with a modest amount and carefully observe its effects before considering larger quantities. Adopting a “start low and go slow” approach is advisable, acknowledging that the impact of decarboxylated weed can be more potent and enduring compared to its raw or cured counterpart.


What is the purpose of decarbing weed?

Decarbing weed converts non-psychoactive THCA into psychoactive THC, enhancing cannabis potency for use in edibles, tinctures, and non-smoking consumption.

What temperature should I use to decarb weed?

The recommended temperature is 250°F (115°C), ensuring effective decarboxylation without compromising cannabinoids and terpenes.

Won’t the weed decarb during cannabutter infusion?

While possible with precise devices like sous vide, it’s recommended to separately decarb weed to ensure optimal THC activation.

Do you need to decarb weed before smoking it?

No, smoking or vaporizing automatically decarbs THC, but for edibles, decarbing is crucial for potency.

Does decarboxylation destroy CBD?

No, correct decarbing activates CBD, converting CBDA into CBD for potential therapeutic effects.


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