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Descaler to use with Gaggia Classic
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Discussions > Espresso > Q and A > Descaler to use...  
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brianl
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Posted Mon Jul 15, 2013, 11:06am
Subject: Descaler to use with Gaggia Classic
 

I have read numerous topics that say to use urnex dezcal and cleancaf and others that say not to use them (some say use just the liquid versions and not the powders). What is best for the aluminum boiler? most topics say to use a mild solution but what exactly is mild? And should you not let the solution dwell? Just mix it and use as quick as possible?

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jonr
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Posted Mon Jul 15, 2013, 4:45pm
Subject: Re: Descaler to use with Gaggia Classic
 

While I don't know about those specific products, good descaling solutions contain inhibitors to protect the metal so I would never use something like just diluted citric acid.  Aluminum requires different inhibitors than the common brass, copper and stainless ones - so it should specifically say it is compatible with aluminum.
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D4F
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Posted Mon Jul 15, 2013, 6:17pm
Subject: Re: Descaler to use with Gaggia Classic
 

The safest according to Gaggia

http://www.wholelattelove.com/Gaggia/gaggia_decalcifier.cfm

You have noted several others.

"Tex" who used to post here and moved to Gaggia User Group uses Citric and recommends citric.  Many older thread posts on CG by Tex and SJM, both at Yahoo.

http://coffeegeek.com/forums/espresso/machines/314873

Others use acetic acid but the odor may be difficult to deal with.  

Mild is probably not the best term, as you still have to dissolve the scale.

Gaggia + citric, or + descale on CG will get you a lot of info, but then you still have to decide and this is one of those where YMMV :)

 
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NobbyR
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Posted Tue Jul 16, 2013, 2:11am
Subject: Re: Descaler to use with Gaggia Classic
 

For the aluminium boiler of the Classic you must use a descaling agent based on tartaric acid. Do not use citric acid or acetic acid, they'll affect the aluminium surface.

 
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brianl
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Posted Tue Jul 16, 2013, 8:28am
Subject: Re: Descaler to use with Gaggia Classic
 

Do you have any recommendations for agents that are based on tartaric acid?

So far it seems like cleancaf is the best bet with dezcal only needed when you are having issues.
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D4F
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Posted Tue Jul 16, 2013, 9:00am
Subject: Re: Descaler to use with Gaggia Classic
 

brianl Said:

Do you have any recommendations for agents that are based on tartaric acid?

So far it seems like cleancaf is the best bet with dezcal only needed when you are having issues.

Posted July 16, 2013 link


Cleancaf does not de-scale and is more for cleaning oils according to the Urnex site.  MSDS on some of the agents is a bit difficult to find so you cannot always get ingredients.  I got tired chasing tartaric when I started.  I believe Gaggias own is the safest bet, just not cheap.  Tex made the point that citric left in aluminum would be bad, but not for descale and flush.  YMMV

 
D4F also at
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gophishin
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Posted Tue Jul 16, 2013, 12:28pm
Subject: Re: Descaler to use with Gaggia Classic
 

It was recommended to me to use Durgol Espresso Decalcifier with the classic though after a quick search I cannot find what the cleaning agent is. Click Here (www.seattlecoffeegear.com)  I have used it on my machine once and was pleased with it, fwiw.
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brianl
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Posted Tue Jul 16, 2013, 3:49pm
Subject: Re: Descaler to use with Gaggia Classic
 

D4F Said:

Cleancaf does not de-scale and is more for cleaning oils according to the Urnex site.  MSDS on some of the agents is a bit difficult to find so you cannot always get ingredients.  I got tired chasing tartaric when I started.  I believe Gaggias own is the safest bet, just not cheap.  Tex made the point that citric left in aluminum would be bad, but not for descale and flush.  YMMV

Posted July 16, 2013 link

But do i need a massive descaler? Shouldn't that be used when i'm having noticeable problems? I see tons of tartaric acid on amazon but not sure of doing the mixture myself. Would it be like 30g of tartaric acid with a liter or water or something? What would the ratio be or any guidance would be helpful.

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does the urnex descaler have inhibitors to prevent erosion to metal? some people say this but no gold standard.

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D4F
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Posted Tue Jul 16, 2013, 5:34pm
Subject: Re: Descaler to use with Gaggia Classic
 

I read the label on the amazon post; Urnex descaler contains citric acid, sulfamic acid, and aluminum salts.  I am not sure that any, including Gaggia's, would be good for aluminum or you, but ok for descale and flush.

When I looked at this a year ago, I found a good deal on Gaggia decalcifier and purchased.  When out, I will probably use citric as it is cheap, or Urnex descaler.  The Cleancaf is good for backfluch as noted.  I got Gaggia tablets at the time and use about 1/4 of a tablet at a time.  I water backflush a bit daily when I am done.  I get little buildup that way.

 
D4F also at
http://www.gaggiausersgroup.com/
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brianl
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Posted Tue Jul 16, 2013, 7:39pm
Subject: Re: Descaler to use with Gaggia Classic
 

what does the aluminium salts do?
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