Portion-control packages number in the tens and tens of billions, almost too many to count. Every time any of us frequent an away-from-home eating establishment, we overtly or unknowingly use unit-portion packages of food or food components.
The most visible and familiar are, of course, the small unit-portion packs of ketchup, mustard, liquid coffee lighteners, and sweeteners appearing in quick-service food establishments. Less familiar are the size-portioned packages used in retail foodservice b…