Actually along time ago, I was grow some crop and had left over i would stuff green in a container and put in the freezer. My wife, weeks later took the stuff out while defrosting the fridge. I found the grass in a cabinet a couple of days later in the seal plastic butter dish. Needless to say when I opened it, it was specked with white dots of mold. Me being young, stupid and out of pot, dried it out anyways. There was probably four ozs or so, anyways, roll up a hooter, and two drags down, I started getting a heavy anziety attach, Took me half an hour to come down. I was gonna throw it out and friend of mine inquired and I told him, this stuff aint good, but he took it and to this day he thought that was the greatest smoke. Not me. Anways, a little mold might have quite an effect, possiably.