According to the federal Cannabis Act, an individual may possess, in a public place, cannabis of one or more classes (dried flower, pre-rolls, extracts, seeds, edibles, or topicals) equivalent to 30 grams of dried cannabis. As such, the purchase limit per transaction is 30grams of dried cannabis, or its equivalent

The 30 gram possession limit in the Cannabis Act is based on dried cannabis. Equivalents were developed for other cannabis products to identify what their possession limit would be. One (1) gram of dried cannabis is equal to:

5 grams of fresh cannabis

15 grams of edible product

70 grams of liquid product

0.25 grams of concentrates (solid or liquid)

1 cannabis plant seed