It took a bit of work to figure out. There is limited written help. Anyway, this was our choice of "canner" so we sort of had to make it work. When you put in the time for water bath canning, it's single digits, like just "10". My genius son figured that out. I'd have put in "10:00" which would have been 10 hours. Oi. The dial spins around seemingly forever, then the timing appears. We managed to do 5 jars of hot peppers.