[Avodah] Kosher

[Isaac Balbin]

> R' Micha wrote:
> 
> When dealing with bitul, there is only bitul bedi'eved. This includes
> anything made by a non-Jew, since he has no "lechatkhilah", and thus we
> only get the taaroves after it exists.
> 
> So far, I used the terms lechatkhilah and bedieved relative to the time
> of mixing. Let's talk lechtakhilah and bedi'eved relative to eating it.
> 
> As this point, bitul already occured. I am under the impression that
> I can now eat the result lechatkhilah, that it is no less kosher than
> had that 1% of whatever not fallen in.
> 
> Was I mistaken?
> 
> Because according to my understanding, once the non-Jewish company did
> the mixture, the tarfus (using the term generically) is batul, not
> there, and may be eaten with no qualms. (At least no halachic ones.

If there is certification, there is the issue that the Goy is doing it (partially) for a Yid.
This is bitul lechatchila according to many. There are therefore cases of items which have been investigated as per the ingredients and items which are formally certified. The latter presents less wiggle room for bitul.

Of course, if it's a dovor hamamid, or adds colour, or nosen taam this complicates Bitul B'dieved even for a Goy.