[Avodah] bittul

[Eli Turkel]

<<HaRav Sh Z, explains that although Chamets during Pesach is not Battel
1:1000, nevertheless it is Battel when it is not at all discernible. This
means that at 1:1000 it is still discernible. Consequently 1:60 is certainly
discernible. Now this is strange since 1:60 is the rule of thumb at which we
assume taste is no longer discernible.>>

I understood that RSZA meant that discernible meant detectable by
means available to chazal
not necessarily taste.

I have trouble understanding those that disagree. If Mashehu is taken
literally I am sure
that with a fine enough microscope one can find chametz in everything.
ie baking matzot there are chametz particles in the air from a nearnt
bakery in extremely small portions

-- 
Eli Turkel