[Avodah] Eating Two Kezeisim of Matza for Motzi-Matza.

[kennethgmiller at juno.com]

R' Richard Wolpoe wrote:
> Lemashal, If I make kiddush on a revi'is of wine, is not
> that revi'is enough to create a shi'ur for bracha ahcaronah
> etc. as well as enough to make kiddush? IOW can't the one
> sh'iur handle 2 functions? OTOH, "ein ossin  mitzos havillos"
> might require a separate kos [think of sheva brachos]

It seems to me that although it is a mitzva to say a bracha acharona, it is not the sort of mitzva which is said to be done "over a kos". At least, it is certainly different from Sheva Brachos in that respect. Therefore, the one reviis will suffice for kiddush, and not even a mashehu more is needed.

Similarly, no one suggests that one needs a three kezaysim - one for Matza, one for Lechem Mishneh, and one for Birkas Hamazon. Birkas Hamazon doesn't even enter into the calculation, and neither does the Bracha Acharona on the wine.

But lechem mishneh is a bit different. Lechem mishneh is a mitzvah, whose shiur is a mashehu. Thus, one kezayis of matzah is not enough - he needs the kezayis for the mitzvah of Matzah, and another mashehu for Lechem Mishneh.

But I'm glad you mentioned Kiddush, because it is very relevant to this discussion, in the case where one wants to satisfy Kiddush Bemakom Seudah with no hamotzi and no mezonos, but rather with wine. See the Shmiras Shabbos K'Hilchasa 54:23, that in such a case he should drink a melo lugmav for Kiddush, PLUS a reviis for the Seudah, but that anyone he is being motzi can just drink the reviis as their seudah. (Full disclosure: He also says that b'shaas had'chak the lone reviis will work for both kiddush and the seudah. But I'm confident that b'shaas had'chak the lone kezayis will work for both matza and lechem mishneh too!)

Akiva Miller
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