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Can you use a warming drawer on shabbos.
K deirah blech the k deirah blech is a rectangular covered shallow pan which is filled with water and placed before shabbos over the stovetop.
And similarly as with ovens you must also cover your warming drawer controls if you are leaving it on over shabbos and not change the setting.
34 permit its use for heating food on shabbos provided the food is fully cooked and solid.
When you open the drawer to put the food inside you are going to cause the burner to go on and compensate for the heat loss that you created.
Most warming drawers are regulated by a thermostat.
But many rabbis hold that even a hotter drawer would be allowed as one does not ever cook in the drawer but only uses it for warming and as such there is no issue of appearing to cook when food is placed in it.
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Warming drawers on shabbos.
No food cooked or non cooked may be placed in the oven on shabbos to re warm or cook.
However if the warmer drawer is adjustable or it could reach temperatures of 275 degrees it is certainly forbidden.
As discussed earlier one may not put food into a warming drawer on shabbos.
The second problem is that perhaps one will adjust the temperature setting on shabbat.
I have learnt that with almost all warming drawers when they are opened cool air goes in and the drawer will then need to bring the temp back up to the set temperature.
By keeping food in the drawer you are showing that you want this extra heat to be generated.
Just like you wouldn t put food into an oven to warm it up on shabbos you may not put food in a warming drawer on shabbos.
Ten minute halacha warming drawers on shabbos.
However the knob must be covered over.
All food must be fully cooked and placed in the oven before shabbos.
No adjustment to the temperature is permitted on shabbos even in the sabbath mode.