There are limits to how much patrons can purchase at one time.They are as follows: 28 grams (1 ounce) useable marijuana (the harvested flowers, or bud) 7 grams of marijuana concentrates (wax, shatter, etc) 16 ounces of marijuana-infused edibles in solid form (cookies, chocolates) 72 ounces of marijuana-infused edibles in liquid form (sodas, coffee)