Water makes up 98% of your coffee. The wrong water — too hard, too soft, or incorrectly filtered — affects extraction quality and machine longevity significantly. Browse all water quality answers below.
Tap vs filtered vs bottled — what actually matters
What TDS range produces the best extraction
TDS meters, test strips, and what to measure
How hard water damages machines over time
Descaling intervals based on water hardness
Pre-made packets vs making your own water