Hi John L.,
I know right? My mom would have never done that if there had been raw meat or fish in that casserole for sure. I do recall it was steaming hot though. It took a couple of hours.
I thought that was a neat range. My folks sold it with that house. It was a gas self clean version. Burner with the brain, built in vent fan, and a huge fluorescent work light. The main problem was the oven had no pilot light, and it was troublesome to ignite.