Coffee Education
The Fines Fight: What the 'Dust' in Your Grind Is Actually Doing to Your Espresso
Zurich University research from 2024 shows that coffee fines in espresso affect permeability rather than taste. Learn how this impacts your grind.
From the War Room
Blog: extraction yield
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Coffee Education
Light Roast vs. Dark Roast: The Caffeine Fight Both Sides Are Losing
Light roast fans and dark roast diehards are both citing the wrong number. A 2024 lab study finally names the real caffeine winner.
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Brew Guides
Flash Brew vs. Cold Brew: The Iced Coffee Fight That Steep Time Loses
Cold brew is the safe pick. Flash brew is the better one. Here's the extraction science behind brewing hot and chilling on ice instead of steeping twelve hours.