Input lever
Delivery & Mixing
Wheel face
Pour rate
The speed at which water is poured.
AeroPress Wheel Variable
Bed flatness
Delivery & Mixing · Process state
How even the coffee bed is before pressing.
Process state
Delivery & Mixing
Wheel face
Competition practice
Inferred
Definition
Bed flatness describes the geometry of the settled bed just before separation.
Why It Matters
Uneven beds can create uneven flow paths or localized pressure behavior.
Page Context
Bed flatness is part of the Brew Supply AeroPress Wheel and helps brewers describe how even the coffee bed is before pressing.
Related variables
Input lever
Delivery & Mixing
Detail panel
Pour intensity
How forceful the pour is.
Input lever
Delivery & Mixing
Wheel face
Pour pattern
The spatial path of the pour.
Input lever
Delivery & Mixing
Detail panel
Pour stages
The number and structure of pours.
Input lever
Delivery & Mixing
Detail panel
Saturation method
How the brewer ensures all grounds are wetted.
Input lever
Delivery & Mixing
Wheel face
Exact stir count
The exact number of stir motions.
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.