DID YOU KNOW? While marijuana needs sunlight during its natural growth cycle, things are different once the plant is harvested; due to UV degradation, cannabis should not be exposed to sunlight (or any type of UV radiation) after the harvest of the plant.
A pivotal study published in the Journal of Pharmacy and Pharmacology in 1976 outlined this issue, with researchers finding that light was the #1 factor in cannabinoid degradation. They also discovered that cannabinoids remain stable for approximately two years if properly stored.
In simple terms, the researchers found that the UV light emitted from the sun can degrade your cannabis, in the same way that its harsh UV rays turn grass brown at the end of a long sunny summer. So too will UV rays burn up the valuable compounds in your cannabis flower, cannabinoids, and terpenes, negatively impacting potency & taste.
A similar study at the Boston University School of Medicine showed that cannabis stored over a one-year period had a 36 percent decrease in THC when stored in light compared to a 13 percent decrease when stored in a dark environment.
Therefore, it makes sense to keep your cannabis out of direct light.
Have you ever wondered why medicine bottles are tinted?
It is because UV light is notorious for wreaking havoc on the majority of non-UV blocking synthetic and organic items. To avoid an untimely loss of these important chemicals, keep your cannabis in opaque, or UV protected (and Anti-Static) container.
Studies also show that exposure to direct light accelerates the degradation of THC into CBN. Essentially, the exposure to light (and oxygen) expedites the oxidation of THC, converting it to cannabinol. For this reason, it’s recommended that you store your cannabis buds in a cool dark place, preferably in a sealed container. You can also utilize packaging options that incorporate a UV blocker for an added layer of UV protection. Useful storage locations range from a locked cabinet to even putting your cannabis in a basement, as long as the room doesn’t get too cold or moist.
KEY TAKEAWAY: Just like you should be doing with yourself, your cannabis also needs conscious protection from the sun.