[Avodah] Halachic Policy Guidelines of the Kashrus Authority of Australia

[Micha Berger]

More along those lines... The Rashba, Toras haBayis 4:1, explains bitul
berov in a taaroves in terms of kol deparish, meiruba parish, which is
why he requires not eating the entire taaroves. Isn't it much like not
eating all three pieces in the case of safeiq? But in any case, he invokes
the safeiq kelal to explain the taaroves one.

Bekhoros 23a gives a complex answer if bitul renders the minority of a
taaroves keman deleisei dami. When touching a tamei item, since you are
only touching at one point, we say keman deleisei. But when it comes to
masah, since you are carrying the whole item, if part is tamei you are
carrying the tamei within.

Tosafos say that when earing, each bit is a mi'ut, and therefore even if
you eat the majority of the taaroves, it's like touching the taaroves
multiple times.

The Rosh (Gid haNasheh, 37) says that if Tosafos's answer was right (not
that he attributes the answer) one would have make sure that each bite
might only be kosher food. He therefore distinguishes between kashrus and
tum'ah instead. I didn't spend the time to follow what he wrote before
replying, since that's off topic.

So, I'm not sure if RnCL's assumption about bitul betaaroves stands. It
seems that bitul is keman de'isa dami unless there is a possibility you
didn't encounter the mi'ut.

Tir'u baTov!
-Micha

-- 
Micha Berger             Nearly all men can stand adversity,
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