Rabbi Aryeh Lebowitz

Rav Moshe held that you can kasher plastic but not for Pesach.

He did not allow kashering plastic for Pesach.

And the issue essentially is that they didn't have plastic in the times of the Gemara.

So they told us what the halach is about glass.

They told us what the halach is about metals.

Whether you can kasher glass or not.

Either it can be kashered in the normal way or it can't be kashered at all or it doesn't even need kashering.

We've discussed that.

in the past.

But when it comes to plastic, they didn't have it in the times of the Gemara.

So the question is, does that mean that as a synthetic material that's not mentioned in the Gemara, you can't kasher it at all?

That's what Moshe seems to say in the Tshuva, in our Chayim Chalvei, Simmon Sadi Beis.

So many are makhmi like Moshe, at least for Pesach.

Rabbi Eider in Lachs of Pesach,

says that Rav Moshe would hold that you can kasher it year-round, just not for Pesach, I believe.

I think he writes that way in the Halachas of Pesach when he talks about kashering plastic.

So that's the first thing.

First step you have to get through is to accept that you can kasher plastic.

Once you get to that point that you accept that you can kasher plastic, then the question is, how do you kasher a dishwasher?

So the way that a dishwasher is bolea tam, the way that it absorbs the taste of chametz,