Viscosity: flow resistance, not merit
The standard
The measured flow resistance judges viscosity as a physical quantity and separates it from impressions that have other causes.
Criteria
- Dissolved sugar and alcohol raise the flow resistance measurably
- The palate impression of fullness is not the same as measured viscosity
- It says nothing about merit, only about composition
Distinction
Viscosity ≠ tears: the streaks running down the glass wall arise from evaporation and the surface tension of alcohol, not from flow resistance. Viscosity ≠ body: the body is a composite overall impression, the measured flow resistance only one of its components.