And even that isn't foolproof ---growing it yourself! According to at least one of the articles I read it could be 'dangerous' too if birds fly over and poop on it or dogs/other animals (cows for one) get to it. It is a less % chance but still possible----In other words all of it needs to be 'cleaned' good to be safe. What is that 'stuff' you cab buy to spray it with to get rid of the bacteria/germs, etc?