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Free book extract from The Physics of Espresso: Shower screens and headspace
Jonathan Gagné's book on espresso is finally available!
I've started to read it, and I'm finding it really clear, and actually fun to read. I love the simple and almost whimsical illustrations.
You can buy The Physics of Espresso book at Scott Rao's web store. Scott has warehouses in both the USA and Germany, so it'll get to Americans and Europeans quickly and unmolested by tariff problems!
Jonathan has allowed us to share with you for free, the section in his book where he discusses shower screens and headspace. He briefly mentions our two new-design shower screens (Freckles and Dimples) as well as his findings on how reducing headspace on his DE1 significantly increased coffee extraction.
Free PDF Download: shower screens and headspace
Updated 2025/08/26