A simple guide to pot, THC and how much is too much
THC content varies widely among marijuana strains and among products made from cannabis. Even with edibles, customers may not understand just how much THC they will ingest.
The way it’s consumed, the type of product and individual tolerance all play a part.
Surprisingly, raw cannabis contains very little of the components that “get people high.” It’s the addition of heat from burning, vaping or cooking raw cannabis that activates the compounds.
Heating triggers a chemical process known as decarboxylation, which converts a chemical compound into THC. More than half of the THC can be lost during in the process.
Here is a guide to better understand the THC content of your cannabis.
Smoke calculator
Smoking, whether using a joint, bong or a bowl, results in more THC loss when inhaled — typically between 60 to 63 percent. A vaporizer loses about 46 percent.
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How much weed will you use?
The average American joint contains 0.3 grams.
How smoking methods compare
How tolerance may influence effects
Frequent cannabis use can result in a tolerance to THC. Beginners may want to start with lower potency products or smoke less.
Smoking vs. eating
When smoked, THC reaches the bloodstream rapidly after being absorbed by the lungs. With edibles, the liver metabolizes the THC — a much slower route. It can take from 30 minutes to 2 hours to start feeling the effects, which tend to be stronger and last longer compared to smoking or vaping.
Baking with cannabis can lead to much more unpredictable results. Home cooks may be less consistent in the amount used, cooking temperatures and serving sizes.
Store-bought edibles can be found in many forms, such as candies, gummies, chocolates and beverages. In California, edibles must be labeled with THC content in milligrams. Lab tests and measurement methods vary within the industry but these labels are one way to estimate the effects of the edible.
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While the typical suggested dosage for low tolerance users is 10 milligrams, new consumers should consider starting with 5 milligrams, according to the Marijuana Policy Project.
Serving size
How tolerance may influence effects
Sources: Analytical 360, Kushy Cannabis Dataset, Periwinkles Edibles, The University of North Carolina at Chapel Hill, Journal of Pharmaceutical Sciences, The Cannifornian and Leafly