[Avodah] timtum halev

[Eli Turkel]

In a shiur I attend we recently had a debate whther the issue of
timtum halev from non-kosher food has any halachic implications.

If some treif substance is batel is there any reason not to eat
the combination because it contains some treif substance which
will cause timtum halev. How because it is allowed to be eaten
does it remove timtum halev (For solif pieces some poskim say one
piece should be thrown out - however, statistically this doesnt help
if it happens a few times most likely a treif piece was eaten)

A similar case happens whenever there is a safek about some piece
and the halacha paskens that one can eat it. Is there some reason
to avoid it because of timtum halev?

kol tuv

-- 
Eli Turkel