Jun 6, 2026
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2 min read
Extraction, Fast and Slow
We talk about extraction like it's one thing. It isn't. It's two processes, diffusion and advection, quietly working together. Understanding them makes every dial you turn finally make sense.
Science
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May 9, 2026
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2 min read
Playing with ratio for pourovers
Turns out ratio is not just controlling the strength, but also the extraction. Once you understand the difference, ratio stops being a fixed setting and becomes a lever you can pull on the same bag of beans. Here's how to play with it.
Basics
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