“And he shall not put frankincense upon it” — if he placed a kezayit of frankincense on even a minimal amount of this minchah, it is invalid. “Putting” (netinah) is defined by a kezayit measure.
In the sugya: Unlike oil, which invalidates in any amount, levonah requires a full kezayit to effect the disqualification. Once that measure is present, even a speck of the flour is ruined.
Type of Learning
Diyuk of “yiten” as a full netinah measure — levonah requires a kezayit to effect the disqualification, unlike oil which invalidates in any amount.
What Is Learned
Once a kezayit of frankincense is placed on the chatas flour, even a speck of that flour is ruined. The measure for levonah is a kezayit; the measure for the flour that becomes pasul is any amount. The two substances therefore operate under different quantitative thresholds.