[Avodah] Keli Sheni

[Rabbi Meir G. Rabi]

Tosafos AZara explain that immersing a small bucket into a large cauldron
of boiling water
cannot be used to Kasher

Now the usual consideration that the walls of the KSh cool the contents
within does not apply in this case - the entire bucket has been immersed
and heated in the boiling cauldron
keep that in mind when considering if the ladle used to serve chicken soup
or Cholent is a KSh.

It seems that Tos are saying that the contents of a pot, if mainly water
gets heated to 100C no matter how hot the fire is
more heat just makes it boil more
to get it hotter you must use a pressure cooker
if there is Shmaltz etc. that may get a little hotter than 100C

The walls of a KRi however, they get as hot as the fire
maybe 350C
so when you take the KRi off the fire it continues to boil

Whereas the KSh
even when immersed in the boiling cauldron
is not hotter than the contents of the pot 100C - 120C

Best,

Meir G. Rabi

0423 207 837
+61 423 207 837
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