cmcgreger Senior Member Joined: 5 May 2003 Posts: 5 Location: Bavaria, Germany Expertise: Beginner
Espresso: Elektra Mini Verticale Grinder: Zassenhaus Vac Pot: no Drip: no Roaster: unfortunately, none yet
Posted Thu Mar 2, 2006, 5:16am Subject: removing hard water deposits
Hey everyone, I have an Elektra mini-verticale. It makes wonderful espresso (I use Danesi espresso). I would like it to continue to do so for many years, and that's why I've been thinking about removing any hard water deposits inside it safely. I believe it has a marine brass boiler.
I use Volvic water in it, which possesses 130 mg/l total minerals, 71 mg/l HCO3 and 11,5 mg/l Ca. Therefore, I assume eventually I'll need to.
I bought the machine in Italy, and there were no instructions regarding maintenance in any language on the single piece of paper I got with it.
Anyone have any ideas. (By the way, I live in Germany, so I may not be able to get certain brands available in the US.)
Posted Thu Mar 2, 2006, 9:24pm Subject: Re: removing hard water deposits
I use food grade citric acid. You can usually find it at a homebrewers supply shop or a soapmaking shop. I run about a quart of water with one tablespoon of citric acid into the boiler. I let it soak for maybe an hour and then flush with two or three quarts of fresh water. The best thing about citric acid is is doesn't leave a funny taste behind like vinegar.
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