in order for weed to have an effect orrally it needs to be cooked longer than 30 seconds to release the active ingredients.....there's beena discussion like this before....now to the original question....make sure you wrap it in tinfoil and that the peanutbutter is on both crackers....and you don't need to cook it a full 20 mins, that's what i did and it was just a tad bit on the overcooked side....