Input lever
Grind & Particles
Wheel face
Grinder model
The grinder used to prepare the coffee.
AeroPress Wheel Variable
Grind speed / RPM
Grind & Particles · Input lever
The speed at which the grinder is operated.
Input lever
Grind & Particles
Wheel face
Competition-relevant
Competition practice
Inferred
Definition
RPM is the operating speed of the grinder, whether controlled electronically or by technique.
Why It Matters
RPM can change fines, static, heat rise, and therefore the practical PSD of the coffee.
Page Context
Grind speed / RPM is part of the Brew Supply AeroPress Wheel and helps brewers describe the speed at which the grinder is operated.
Related variables
Input lever
Grind & Particles
Wheel face
Burr set
The burr geometry installed in the grinder.
Input lever
Grind & Particles
Advanced detail
Burr alignment
How evenly the burrs are aligned.
Input lever
Grind & Particles
Wheel face
Grind setting
The selected grind size setting.
Input lever
Grind & Particles
Wheel face
Sieving
Separating grounds by particle size after grinding.
Input lever
Grind & Particles
Detail panel
Fines removal
Removing very small particles from the grounds.
Affected outcomes
Measured metric
Cup Outcome
Wheel face
Beverage TDS
Measured total dissolved solids in the served beverage.
Calculated metric
Cup Outcome
Wheel face
Extraction Yield
Calculated percentage of coffee mass extracted.
Measured metric
Cup Outcome
Wheel face
Beverage Yield
The liquid beverage mass collected or served.
Cup outcome
Cup Outcome
Wheel face
Aroma
The smell of the brewed coffee.