Degassing and CO2 curves
How roasted coffee degasses CO₂ over time, why it matters for freshness, and how to manage storage and brewing around degassing curves.
Uneven extraction
Headspace measurement and consistency
Why measuring and maintaining consistent puck headspace is crucial for even extractions and how to achieve it reliably.
Distribution methods (stockfleth, OCD tools)
The most common espresso distribution techniques—manual methods like Stockfleth’s move and mechanical tools like OCD—and how they influence puck uniformity.
Preinfusion and blooming espresso
How preinfusion and blooming techniques affect espresso puck saturation, extraction uniformity, and flavor outcomes.
Temperature stability considerations
How temperature stability during immersion and hybrid brewing affects extraction consistency and flavor clarity.
Advanced agitation techniques
How different agitation methods influence extraction uniformity, clarity, and body in filter brewing.