Tag Archive for 'Extraction'

Espresso coffee is brewed by first grinding roasted coffee beans into grains. Hot water then forces its way through a bed of coffee grains at high pressure, and the soluble content of the coffee grains dissolves into the water (extraction) to produce espresso.

New Study Explains Why More Finely Ground Coffee Beans Brew Weaker Espresso

May 9, 2023 by Natali Anderson

A recent experiment showed that, contrary to theoretical predictions, beyond a cutoff point, grinding coffee more finely results in lower extraction. One...