It was beautiful. And it wasn’t his.
While diffusion happens inside the grounds, is what happens outside them. This is the transport of dissolved solids by the bulk movement of water. the physics of filter coffee epub updated
For a 20g dose, aiming for 20% extraction yield: It was beautiful
Roasted coffee beans trap ~1–2% of their mass as CO₂. Water displaces this gas. If you don't wait for the gas to escape, it creates a hydrophobic barrier—water channels around dry coffee, missing extraction entirely. the physics of filter coffee epub updated
Sites like Kofio.co and PERC COFFEE often stock the latest print runs.