How Much Does Cannabis Degrade from Air and Heat?

In a recent study, scientists set out to determine the degradation rates of THC in cannabis resin when exposed to air and different temperatures. They found that, over time, the potency of the THC decreased significantly. Exposure to air and heat were two of the most significant factors in this decrease.

This information is important for both consumers and producers of cannabis products. It helps us understand how best to store cannabis products to maintain their potency over time.

This article will explore the findings of the study in more detail and discuss what they mean for those who use cannabis products.

What Is THC?

THC is the main psychoactive compound found in cannabis. It gives users the “high” feeling when they consume it. THC levels can vary widely from one cannabis product to another. In general, higher THC levels mean a more potent product.

THC and other cannabinoids are essential because they interact with the human body in different ways to help medical marijuana patients. Some cannabinoids, like CBD and THC, are known to have medicinal properties. When cannabis degrades over time, the levels of these important cannabinoids decrease. This can change the way cannabis affects users.

What Were the Results of the Study?

The results showed that, over time, the THC in cannabis resin degrades significantly. After four years, the study showed that THC levels had decreased by between 64% and 74%. The scientists concluded that exposure to air and temperature were the two most significant variables in this decrease.

The physical composition of the cannabis was also altered, resulting in lower quality and potency.

This information is important for consumers because it helps them understand how best to store their cannabis products. If you plan to keep your cannabis for long periods, understand that doing so may result in decreased potency and an altered physical composition.

How to Preserve Cannabis Quality

There are several steps you can take to preserve the quality of your marijuana. For example, you should store your cannabis in an airtight container in a cool, dark place. This will help slow the degradation process and keep the THC levels high.

Airtight containers can be found at most stores that sell cannabis products. If you cannot find an airtight container, you can also use a sealed zip-top bag.

It’s also essential to keep your cannabis away from heat sources. Heat speeds up the degradation process, so it’s best to avoid storing your cannabis near stoves, radiators, or in direct sunlight.

You can also purchase cannabis that has been vacuum-sealed. This is a good option if you plan to store your cannabis for an extended period of time. Restricting airflow and keeping out any moisture will help keep your cannabis fresh and potent.

Finally, remember that the quality of your cannabis will decrease over time, no matter what steps you take to preserve it. Therefore, if you want to maintain high THC levels, consuming your cannabis within a few months of purchasing it is best.


Cannabis producers and consumers alike should be aware of how THC levels change over time. This information can help you make informed decisions about how to best store and use your cannabis products. In addition, by taking steps to preserve the quality of your marijuana, you can enjoy its effects for longer.