This fall we got hay delivered right after it was baled. Cut on Friday, bailed on Saturday and delivered on Sunday. I went to do chores and there were 3 bales I couldn't move for the life of me, had to have been well over 100lbs. These were supposed to be 70lb squares, so obviously wet. They were sitting by themselves as they were to heavy to stack.
Get them outside and cut open and the center was so hot you couldn't touch it. Luckily the bo who is very petite stacked the hay so we knew those were the only 3 that were wet otherwise she wouldn't have been able to lift them.
Scary thinking what would have happened had they stayed in there over night. But they should have never bailed the hay so soon after cutting, there was no reason for that. And if I was the one paying the bill I would have told them to take their hay back, ran into too many moldy ones.