[Avodah] What is Chametz

[Alan Rubin]

Micha suggested

: So what is chametz?

>As I suggested above, it is the leavening of water and one of the 5
>species. Directly correlated to an empirical metzi'us, just not as broad
> of a category as leavening.

So I take some mei peyros, let some of the H20 in it evaporate and replace it.

That will make chametz but the original mei peyros wouldn't.

What if I collect the vapour from the mei peyros and add it back to the original mei peyros?

Alan