Single it Out OR Double Date for Espresso Extraction? - BrewRatio
Single it Out OR Double Date for Espresso Extraction? - BrewRatio
The 9 Factors of Extraction — Deeper Roots Coffee
Coffee Extraction and the Ideal Brew
An equilibrium desorption model for the strength and extraction yield of full immersion brewed coffee
Comparing My Espresso to Publicly Available Data, by Robert McKeon Aloe
There is no Single Perfect Espresso Recipe! Make it your own!
Systematically Improving Espresso: Insights from Mathematical Modeling and Experiment - ScienceDirect
The 2:1 Ratio — Scott Rao
Dialling In Basics Espresso Aficionados
How to Make Espresso - Prima Coffee Equipment