I usually use 2.5-3 ounces of primo buds to make a 48 ounce bottle of canna-oil, so my brownies are pretty potent. I have, a few times, eaten four of those brownies, and that's really too much -- usually knocks me out and even if I sleep a full eight hours, I still wake up reeling and staggering around. That reminds me: time to bake some more brownies! *snicker*