I started with frozen ham, and I only ran the freeze cycle for about 3 1/2 hours and then kicked it into drying. With factory drying settings it took from 7pm until noon the next day. Last night I did my do-over pieces of ham, some browned hamburger, and some barbecued hamburgers. I found at 8am there was still 2 hrs left on dry timer but it was holding 250mTorr, that is about as low as you go.... So, on a hunch I shut it off a couple hours early at 8 and everything was done! So, I'm learning the machine pretty quickly and how to get the most out of it. The 3-31/2 hr. Freezing time has worked great with pre-frozen foods, cutting 6 hrs off each run.