I just grind ten bags of 50 l of old archives for a week. At first I stopped every ten minutes, but then I was working until the machine stops because it tells itself that the maximum temperature is reached and stops automatically. I have not had a single jam and I've spent a lot of different materials (paper, cardboard, book stem checks separated into three credit cards, weighing tickets). A real joy to use! In short I am very satisfied with this purchase.
