As these folks have said, you are alright. But I surmise that you would rather your personal freedom not be left up to Read the sticky at the top of the shipping section entitled: STEALTH THAT WORKS - DITCH THE PE FOOD GRADE VAC SEAL - then read it again. I cannot emphasize how important it is to follow basic precautions when mailing controlled substances, particularly ones with such a pungent odor. Watch your ass because the pesky postal inspector is watching his. edit: My tone may seem like I'm busting balls over something tiny, but remember, you need to control every variable within your control.