Settle down folks. Please.

Usually any potting mix is made by using the big front end loader to put in scoops (yards at a time) into a conveyor system that takes it to a mixing hopper. There some person from outside the country without a green card (just kiddin' round) dumps in a 100 pound sack of vermiculite a 50 pound sack of sand, 20 pounds of ammonium nitrate, and so on.

Depending on whether he got laid or just got drunk last nite will have a direct effect on the mix. No mixing long enough after dumping all that stuff in and sending out to the bagger will give you a bad batch.

So, Go check if they have green cards or not. Not sure if that will make a difference, but I hope to hell it lightened things up here.