Rabbi Aryeh Lebowitz

Kazayis is only, but still, from a prusa to get two kazesim for everybody at the seder.

And very often there's more than five or six people at the seder.

So how are you going to do it?

So the meaning is that we add

other matzahs to be mashlim, the kazayis for everybody, and you have a little bit of the prusa for everybody, a little bit of the shlema for everybody, but other matzahs as well.

So now, but wait a second, why do we have two kazayis in the first place?

Either because we're mesupak, whether the alachilas matzah is going on the shlema or it's going on the prusa, so we want to have a kazayis of each, or because you should eat a kazayis from the

a hamotsi and a kazayis from the mitzvah of matzah kazayis from lechem mishnah and kazayis from the mitzvah of matzah l'chaura according to both of those reasons that's only nogea to the matzos on the ka'ara that's where you have a suffix what the achilis matzah is going on the shlema el yonu or the prusa em tzoyis but when everyone else is not eating from the matzahs on the ka'ara they're just getting extra the al achilis matzah is going on whatever it is that they're eating

And that's why Rosh Hashanah says that this whole inyon of having Shnei Kezesim is only for the person leading the seder, for the person who actually has the three matzahs in front of him.

But for everybody else who doesn't have to do matzo in front of them, they're just eating from the box of matzos, it's good enough to have only a single kazayis.

You don't even have to observe this chumraf shnei kazayisim.

It happens to be in Kitzush l'chraruch, he says that the Yad V'mesubin also eats shnei kazayisim.

But pashas is l'chorol, like Rav Shlomo Zalman, and that's what they quote from Rav Eliashiv in the Haggadah of Rav Eliashiv.

That's what they quote from the stipler in Orchis Rebbeinu, who wasn't into the whole chumrah of Shnei Gezeisim so much in the first place, that certainly even if you're going to be makhmi with the Shnei Gezeisim like Shulchan Aruch recommends, and like the Rishonim recommend, it should only be for the person who's eating from the three matzahs, but it's not necessary for everybody else.

Okay, good afternoon everybody.

So as Pesach is coming closer, there's a lot of questions that people face regarding kashering things.

I don't get so many questions about kashering kalim anymore because people just have Pesach kalim.

But kashering kitchens in general, about kashering appliances and things like that.

We're not going to go through all of that right now, how to kasher an oven, how to kasher this.

But maybe some generalities about what types of materials can and cannot be kashered.