shabbat - Matzah eruvin on erev Pesach

An eruv allows Jews to carry within a semi-public space on Shabbat. The space must be bounded by walls and must meet several detailed requirements. The eruv must consist of food for a meal for the community that shares that semi-public space.

Most cities or towns that have an eruv use matzah for their eruvs - it's cheap, it never goes bad (well, it never goes worse) and you can eat it all year (just make sure to replace it on Passover). But there is one time you cannot eat matzah - erev Pesach.

If erev Pesach falls on Shabbos, how can a community sustain its eruv with matzah (even matzah for that year)?

I once asked a very knowledgeable rabbi this, but I found the answer unsatisfying. He said this:

• If you made an eruv of a meal for Friday night and it is eaten fully, the eruv remains valid. If you made an eruv of a meal for Friday night and it is not eaten but spoils, the eruv remains valid since it was edible at some point.


• You can technically eat matzah during bein hashmashot - after Shabbos starts, and before the d'oraita ban on matzah starts.


• You can therefore make a meal of matzah during bein hashmashot


• Since the matzah is edible for that meal (you know - the one we intend to eat when we start shabbos so early that we're home from shul, make kiddush, wash, and eat fully by twilight?), it's fine.

I am dissatisfied by this because that meal does not actually exist. I am also dissatisfied because it relies on two definitions of "night" in order to work. It feels strategic rather than genuine.

Is there a better answer as to why using matzah for an eruv on erev Pesach is valid?

Answer

1) See shulchan Aruch end of Siman 416 that Yom Kippur also requires an Eiruv and it is valid (and we all know that we won't be able to eat it at all on YK!), I think that YK would be a stronger question.

2) In Shulchan Aruch HoRav 386:8 he writes משתתפין אפילו באוכל שאינו ראוי לו אם ראוי לשום אדם מישראל, now since Min Hatorah a child is allowed to eat on Yom Kippur (see SA HoRav Siman 394:2 that the restrictions are only if forbidden from Torah Law) and definitely on Erev Pesach that's on Shabbos it's not Min HaTorah even for an adult. In addition by Yom Kippur, a sick person -let's say a woman within 3 days after giving birth- may eat it - therefore there would be no problem with the Eiruv.