Understanding the physics of brewing allows you to control the variables, troubleshoot bitter or sour notes, and achieve consistent results. This article breaks down the core physical principles of filter coffee, from particle dynamics to fluid mechanics. 1. Particle Dynamics: Grinding and Surface Area
This section is essential for anyone serious about coffee. Gagné discusses concepts like particle size distribution and "fines" (microscopic particles), and applies to coffee beans, explaining how the grind produces particles of different sizes. He also analyzes the impact of burr alignment and RPM (rotations per minute) on uniformity. the physics of filter coffee epub updated
The flow rate of water through a coffee bed can be explained by Darcy’s Law, a physics principle governing fluid flow through porous media. The law states that flow rate is directly proportional to the pressure drop and the permeability of the bed, and inversely proportional to the fluid's viscosity and the bed's thickness. Understanding the physics of brewing allows you to