Input lever
Flow, Pressure & Separation
Wheel face
Plunger speed
How quickly the plunger moves downward.
AeroPress Wheel Variable
Press force
Flow, Pressure & Separation · Input lever
The physical force applied to the plunger.
Input lever
Flow, Pressure & Separation
Detail panel
AeroPress-specific
Competition practice
Inferred
Definition
Press force is the hand or tool force applied to move the plunger during the separation phase.
Why It Matters
It affects pressure, flow, bed compression, and how the final liquid is extracted.
Page Context
Press force is part of the Brew Supply AeroPress Wheel and helps brewers describe the physical force applied to the plunger.
Related variables
Input lever
Flow, Pressure & Separation
Wheel face
Output flow rate target
The desired liquid output speed during pressing.
Input lever
Flow, Pressure & Separation
Wheel face
Press duration
How long the active press phase takes.
Input lever
Flow, Pressure & Separation
Advanced detail
Pressure ramp
How pressure builds during the press.
Input lever
Flow, Pressure & Separation
Detail panel
Stop depth
The physical plunger position where pressing stops.
Input lever
Flow, Pressure & Separation
Wheel face
Target output mass stop
Stopping the press at a specific collected beverage mass.
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.