[Avodah] Microwaves, etc. (was Dishwashers 1)

[Isaac Balbin]

> 
> Message: 15
> Date: Wed, 16 Dec 2009 03:11:21 +0000
> From: rabbirichwolpoe at gmail.com
>> 
> 
> I'm not familiar with this Rashba but I do concur that this how inderstand
> the Rambam in Hil. Shabbos 9:6 "klalo shell davar..."
> 
> FWIW RMF/IM asserts that microwaves are derech bishul based off of a Rashi
> in Mas. Shabbos that says Hammah is NOT derech bishul.
> 
> [I'm sure RDE can provide the citation in full. <Smile>]

OH 3:52 for the Igros Moshe but note that R' Shlomo Zalman learns this Rashi in a different way in Minchas Shlomo 12, footnote 4.

> Further tangentially, I have argued with "liberals" who claimed that bishul
> via electricity is not real bishul. One issue is that it would create a
> michshol that anything cooked electically could not be re-heated w/o chancing
> a d'oraisso.

Correct, and if someone is worried about that interpretation of the Rashbo (which I will find IY"H) they might do their first bishul on Shabbos in a more traditional fashion!

> Taken a step further, any cooked food would be a s'feiq mevushal-
> lest it was first only cooked electrically.
> 
> Also it would preclude broiling by means of electicity EG for livers.
Pardon my ignorance. Why is that? Isn't the issue with kashering livers to facilitate the blood drainage in the best way so that in the end it no longer is deep brown internally etc If we had some laser shock machine which did a bombardment of liver to the extent that it achieved the same as regular broiling (or better) would that render the liver not yet koshered?