In my own experience, the coal suppliers do nothing special to protect the bagged coal from the elements. In fact, sometimes they are just left outside to get rained on. Plus when they stack them up, it's impossible for them to naturally dry out. Just another reason why its not worth buying bagged coal. Now, I've also bought loose coal wet as well, but I was told that was because I bought in January and the coal doesn't sit long enough to get dry before I get it. And the huge storage shed where they store it is not even protected from the elements either. So if you buy shortly after it rains, your sure to get wet coal. I did buy in June, and it didn't rain for a while. That same coal was sitting in their storage for a while, so it had a while to get dry. That coal was dry as a bone. It has been warm out for a while then and not as many people were buying, so it wasn't flying out the door so fast as compared to January. But, that's also why the price is a little cheaper. (Supply and demand) THE best time to buy is June, July. Defnitely not September when people are stocking up to start off the winter. Buy when no one else is, that's the key. You'll get a better product at a better price.