I discovered an article on engaging “Sabbath Mode” on an oven today while trying to find a user’s guide online. What is Sabbath Mode? Well:
Quote below from:
http://www.wordspy.com/words/Sabbathmode.asp
If you have a relatively new oven, you may not know that it has a built-in safety feature that automatically shuts off the oven after 12 hours or so. This is sensible, but it has been problematic for Jews keeping kosher on the Sabbath and on Jewish holidays because they’re forbidden to turn ovens (or any electrical appliances) on during that time. However, it is permissible to use electrical appliances that are already on. Hence the need for a Sabbath mode that keeps an oven on at a specified temperature for as long as it’s required. The cook can whip up a meal prior to the Sabbath or holiday and then leave it in the always-warm oven until it is ready to be eaten.
This innovation first appeared in KitchenAid ovens back in 1994.