Advanced Coffee Making

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ACM Real World Applications

ACM 7.04 – Burr Changes Based on Volume

Burr Changes Based on Volume

If you are brewing with blunt burrs, the extraction target will drop even lower. Scott Rao calls this the ‘extraction ceiling’. Over time, 21% extraction will start to taste over extracted, so you will need start targeting 20% extraction. If you find yourself aiming for below a 19.5% extraction target, we would suggest it is time to change your burrs. This is never cheap.