Category
Cleaning & Maintenance
The unglamorous half of good coffee. Rancid oils and scale are the two most common causes of a drink that tastes wrong for no visible reason.
Old coffee oil turns bitter and rancid on a group head, a basket and a grinder burr, and hard water leaves scale that narrows the passages inside a machine. Neither problem announces itself; both show up as flavour that has quietly got worse. These five guides cover the daily, weekly and occasional work, plus the milk pitcher that is the single most-neglected item on most home counters.
No guides match those filters
Try a different stage, or reset the filters.