The Resupply Blog

Over-extracted espresso dripping from portafilter — bitter coffee causes explained
ARC coffee · bitter coffee · coffee brewing · coffee extraction · coffee tips · how to fix bitter coffee ·
Why Does Coffee Taste Bitter? (And How to Fix It)
TL;DR Coffee tastes bitter because of over-extraction, which is caused by water that's too hot, a grind that's too fine, or a roast that's unforgiving of brewing errors. Fix the variable that's out of range and the bitterness goes away....

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