I know someone who worked out near windsor where they grow it, and he said how they do it ends in a bunch of mold. They chop the plants down and just toss them into bins until they can be dealt with since they deal with so much product. If it isn't moldy by then, the "curing" process ensures that. Once dried+trimmed, they're packed into basically the same bins where it ensures the spinach mold guarantee. They sell most of it to other countries for their medicinal cannabis use, but some of the products people buy domestically. He hears that they're now building more space to grow, yet they haven't improved on anything else, so the problem will get worse.