I have a Zojirushi water boiler that uses "100% citric acid" (CD-K03E-JU) which is then diluted in order to clean the white flaky deposits. Can I use this same material to clean my Nespresso Inissia? Does anybody know the proper solution to use? Is vinegar OK too? Thanks!
Posted Aug 27, 2019, 2:25 PM UTC
I've used citric acid with no apparent negative effects, but IME the Nespresso descaler is more effective for Nespresso machines. (Which makes some sense — a Zo descale cycle is full boil cycle and long hold, while a Nespresso descale isn't holding the solution or even running the thermoblock up to brewing temperatures. Even at higher concentrations, citric acid is still relatively gentle in the grand scheme of things.)
Nespresso explicitly cautions against vinegar on the basis of both lingering taste and seal safety.
Nespresso recommend against using vinegar because of the lingering smell/taste.
Their own brand descaler is lactic acid-based.