Practical Halachah: Cooking on Shabbat, Part 5: Leaving a Pot on the Fire for Shabbat
In this class we examine the laws of cooking on Shabbat related to the rabbinic prohibition of ‘shehiya’ (regulations for leaving a pot on the fire before Shabbat). This encompasses the requirement of using a ‘blech’ (a sheet of metal) to cover the fire beneath the pots. Learn the practical application for using hotplates and crockpots, leaving food in an oven, and the three areas on the blech that are of differing halachic status.
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Re: The problem with putting food on a fire before Shabbat is not the cooking itself, rather it is the concern that one might stoke the coals (raise the temperature of the stove) in order to hasten the cooking process, thus violating the Melacha of kindling.
There are two ways to avoid this issue:
1) If the food is somewhat cooked: There is no concern that the coals will be stoked because the food will surely become fully cooked before the nighttime meal.
2) If one adds an entirely raw piece of meat at the onset of Shabbat: There is no concern that the coals will be stoked being that stoking them will not help to have the meat ready before the nighttime meal, and it will be cooked regardless in time for the next day.