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Æ 4.00 What’s in Chapter 4?

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We discuss how both grind size and packing characteristic determine the permeability of a coffee bed. We explain the concept of jamming and how it determines the degree to which we can compress the puck when we tamp. We explore what factors contribute to the onset of jamming and how grinder design might influence compaction. […]

Back to: Advanced Espresso > Æ Compaction and Permeability

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