Plants are grown and eaten but for every plant there is: 300,000 grass/bushes surrounding those plants...Grass is be bad of the plant world, they harbor all kinds of stuff, all kinds of insects go and park in plants who knows probably PEE on it, who knows what kind of viruses they got, carry who knows what, the pee dries and the wind blows it to the plants [remember a virus can remains years inactive and one day it wakes up...They not only stay in plants and bushes but they accumulate, there are bugs at night too...Who says that the cleaning of edible plants is 100% free of anything...DUDE DRINKABLE WATER IS NOT 100% FREE OF ANYTHING...

did you know there is something called: Roaches dust...dust from roaches...That´s just roaches, who knows how many millions/billions of bugs are in the bushes...