Why extraction targets fail when the recipe sheet looks correct
Recipes can appear precise while cup quality drifts. This article explains where process discipline breaks down first.
BrewTheory publishes focused notes on brew standards, water control, café workflow, and grinder discipline. The goal is practical clarity for working coffee professionals.
Extraction drift during service, calm dial-in routines, and the practical relationship between water chemistry and particle spread.
Each article is written to support training and daily bar management rather than trend commentary.
Recipes can appear precise while cup quality drifts. This article explains where process discipline breaks down first.
Dial-in speed usually comes from preparation quality, not from rushing the first few shots after opening.
Flavor shifts often start long before the barista notices them in the cup. Minerals and particle spread explain much of that drift.