Oxidized weed refers to cannabis that has undergone a chemical degradation process due to prolonged exposure to environmental factors. This degradation primarily results from interaction with air, light, and heat, which diminish the plant material’s original qualities.
Identifying Oxidized Weed
Cannabis that has oxidized displays noticeable changes in its sensory characteristics. Its vibrant green color shifts towards duller brownish or rust-colored hues. The texture also transforms, becoming dry, brittle, and easily crumbling, contrasting with the supple feel of fresh cannabis.
A sign of oxidation is a change in aroma. The complex, pungent scents from terpenes diminish, replaced by a smell reminiscent of hay or dry grass. This altered scent occurs as volatile terpene compounds degrade or convert into other substances. It is distinct from mold, which appears as fuzzy white, grey, or black spots on the plant material.
The Chemical Transformation of Cannabis
The scientific basis of oxidized cannabis involves a chemical process where cannabinoids lose hydrogen atoms or gain oxygen atoms. This reaction is driven by exposure to oxygen, ultraviolet (UV) light, and elevated temperatures. Oxygen in the surrounding air directly reacts with the cannabinoids, leading to their breakdown and a reduction in their potency.
UV light causes photodegradation, which breaks down cannabinoids. Heat accelerates this chemical change by increasing opportunities for oxidation and contributing to moisture loss. This combination of environmental factors systematically converts tetrahydrocannabinol (THC) into cannabinol (CBN).
Effects of Using Oxidized Weed
Consuming oxidized cannabis results in a different user experience due to its altered cannabinoid profile. The degradation of THC into CBN means the psychoactive effects, often described as a “high,” are significantly diminished or absent. CBN is a less psychoactive cannabinoid compared to THC.
Instead, users may experience effects associated with CBN, such as sedation, drowsiness, or a “couch-lock” sensation. Some research suggests CBN is effective in promoting sleep. While not considered harmful to consume, oxidized cannabis will be noticeably less potent and might feel harsher to smoke, sometimes imparting an unpleasant or burnt taste.
Proper Storage to Prevent Oxidation
Preventing cannabis oxidation relies on controlling its exposure to the degrading elements. Storing cannabis in airtight containers, such as glass jars with tight-sealing lids, is effective as it limits oxygen exposure. Vacuum-sealed bags are also an option for longer-term preservation by removing most of the air.
Maintaining a cool and dark environment is also important. Cannabis should be kept away from direct sunlight and heat sources, ideally at temperatures between 60-70°F (15-21°C). UV light from any source can accelerate cannabinoid degradation. Regulating humidity levels, within a 55-65% relative humidity range, prevents both excessive dryness and mold growth.