Water, matched to the machine.
We compare your water with what each espresso machine's maker publishes, one measurement at a time. Every number links to its source.
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Espresso machines
Home espresso machines, including super-automatics, with boiler, tank and voltage specs and each maker's water guidance.
Compare all 230Descaling and cleaning
Descalers, group cleaners and milk system cleaners from machine makers and cleaning brands.
Compare all 14RO systems
Reverse osmosis systems: remineralizing units, and plain RO units for Decent machines only.
Compare all 13More gear
Where the numbers come from
The maker's own words, with the source and the day we saved it.
Every limit the check uses comes from the maker's own published words, or its authorized distributor's, quoted with a link. When a maker doesn't publish a number, we say so.
Maker water guidance
Decent Espresso · DE1 (all models), Bengle
Chloride
under 10 ppm
“If using treated tap water, be mindful of the chloride content, since chloride greatly increases the corrosion risk to the machine. Ideally, keep chloride under 10ppm.”
Match your water to your machine, one measurement at a time.
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