[Avodah] Raw food on Erev Shabbos

[Ben Waxman]

If the heat source is grufa uktuma, meaning you can no longer change the 
temperature, then why do you need mesiach da'at?

Ben
----- Original Message ----- 
From: "I. Balbin" <Isaac.Balbin at rmit.edu.au>



>I heard Rav Schachter mention (yutorah.org shiur on bishul b'shabbos) in 
>the name of Rav Soloveitchik that there are two hanhogos for the following 
>situation:
>
> Erev Shabbos, just before licht tzinden, someone places a kettle 
> containing tap water on a Grufa uKtuma heat source. According to those 
> from Lita, it is mutar, presumably because the person is mesiach daas from 
> the kettle. I