[Avodah] ein mevatlin issu lechatchila

[Eli Turkel]

<< technicallly you can ask a Gentile to do it but the product would
be assur see SA Yd 99:5 vkChen lemi shenisbatel bishvilo
See ba'eir hetev 10

Reductio ad absurdum:

Let Gentile mix up 1 neveilah with 2 kesheira pieces lechatchila.
Guard him from bringning in extra meat from outside and you can make a
ta'aroves with bittul lechatchila.>>

The key word is  bishvilo . When a company makes a product
with a small amount of treif they are not adding mayterial in order
to be mevatel the issur for any Jew. Since the purpose is not
bittul but rather this the way of making the product these problems do
not arise and one can have a hechsher lechatchila to supervise that
everything is okay

It would only be problematical if the rav hamachshir wooul suggest to
the company to add some ingredients for the purpose of bittul

-- 
Eli Turkel