Modern cooks will tell you that the way to measure flour is to scoop flour with a scoop whose volume is known, and then to shave any excess off the top. (However, liquids are measured by pouring into a graded (that is, lined) receptacle until the desired line is reached.)
Is that how they measured flour in the bes hamikdash also?
The reason I ask is as follows:
M'nachos 57:2 cites a tana as holding that utensils for measuring flour ("dry measures") were anointed as k'le shares (sanctified) only within, and not on their outside surfaces, whereas "wet measures" were anointed within and without. Other tanaim (see Tosafos s.v. "Rabi") maintain that dry measures were not anointed at all, while wet ones were.
If flour was measured in the bes hamikdash by scooping, then it (I suppose) makes sense that the outsides of dry measures were not sanctified, as they'd want any flour that falls off after scooping, and back into the bin, not to be holy.