Input lever
Coffee Material
Wheel face
Origin
The geographic and agricultural source of the coffee.
AeroPress Wheel Variable
Degassing
Coffee Material · Process state
CO2 release from roasted coffee.
Process state
Coffee Material
Wheel face
Technical science
Competition practice
Definition
Degassing is the release of trapped gas from roasted coffee during resting and brewing, especially visible during bloom.
Why It Matters
Gas release affects wetting, crust behavior, bubbling, aroma lift, and initial resistance to saturation.
How To Observe
- Watch bloom intensity and bubbling.
- Note whether the slurry resists even wetting.
Page Context
Degassing is part of the Brew Supply AeroPress Wheel and helps brewers describe co2 release from roasted coffee.
Related variables
Input lever
Coffee Material
Detail panel
Variety
The genetic variety or cultivar of the coffee plant.
Input lever
Coffee Material
Wheel face
Process
How the coffee was processed after harvest.
Input lever
Coffee Material
Wheel face
Roast level
How light or dark the coffee was roasted.
Input lever
Coffee Material
Detail panel
Roast development
The internal development of the roast, not just the color.
Input lever
Coffee Material
Detail panel
Roast date
The date the coffee was roasted.
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.