Pour rate
The speed at which water is poured.
Delivery & Mixing · Input lever
The exact number of stir motions.
Exact stir count turns vague agitation language into a repeatable control lever, especially when paired with timing and direction.
Small changes in stir count can change homogeneity, extraction progression, fines migration, and bed state.
Exact stir count is part of the Brew Supply AeroPress Wheel and helps brewers describe the exact number of stir motions.
The speed at which water is poured.
How forceful the pour is.
The spatial path of the pour.
The number and structure of pours.
How the brewer ensures all grounds are wetted.
The directional path of the stir.
Measured total dissolved solids in the served beverage.
Calculated percentage of coffee mass extracted.
The liquid beverage mass collected or served.
The smell of the brewed coffee.