Roasting
Degassing
The release of carbon dioxide from freshly roasted coffee beans over hours and days following the roast. Degassing impacts brewing because excess CO2 causes turbulent, uneven extraction and excessive bloom.
गहराई से
Roasted coffee releases approximately 40% of its CO2 within the first 24 hours, with the remainder off-gassing over 2-3 weeks depending on roast level and bean density. Darker roasts degas faster because their more porous structure allows easier gas escape. Espresso typically requires 5-14 days of rest for optimal extraction, while filter coffee can taste best after 7-21 days. One-way valve bags allow CO2 to escape without admitting oxygen, which would accelerate staling.
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