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ScootersNotBombs
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Joined: 22 May 2014
Posts: 1
Location: Atlanta
Expertise: Just starting

Posted Thu May 22, 2014, 6:45am
Subject: Diswasher crud on moka
 

As soon as i bought my new aluminum Moka pot i ran it through the dishwasher.... WHOOPS!
the white corrosion is all over it! is it to safe to drink espresso that has been brewed in this corroded pot??
Thanks!!
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CoffeeRoastersClub
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Joined: 6 Jul 2005
Posts: 4,541
Location: Connecticut
Expertise: Professional

Espresso: Vintage La Pavoni Lever...
Grinder: Breville Smartgrind,...
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Posted Thu May 22, 2014, 7:32am
Subject: Re: Diswasher crud on moka
 

ScootersNotBombs Said:

As soon as i bought my new aluminum Moka pot i ran it through the dishwasher.... WHOOPS!
the white corrosion is all over it! is it to safe to drink espresso that has been brewed in this corroded pot??
Thanks!!

Posted May 22, 2014 link

Just get a green brillo pad and scrub it off with regular dishwashing detergent.  Your dishwasher detergent is caustic to aluminum.  I did the same thing years ago with my new brikka.  Learned my lesson fast not to wash aluminum in the dishwasher.

Len

 
"Coffee leads men to trifle away their time, scald their chops, and spend their money, all for a little base, black, thick, nasty, bitter, stinking nauseous puddle water." ~The Women's Petition Against Coffee, 1674

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ajf
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Joined: 29 Apr 2014
Posts: 23
Location: Long Island
Expertise: I like coffee

Espresso: Rancilio Silvia
Grinder: Vario, Smart, Encore
Drip: Cuisinart
Roaster: Behmor 1600 +
Posted Fri May 23, 2014, 8:44am
Subject: Re: Diswasher crud on moka
 

I would agree with the recommendation not to put it through a dishwasher, and a brillo pad, or barkeepers friend, should clear up the mess at least for the first time.

The corrosion is aluminum oxide, and has no proven ill effects, but there was a scare about 40 years ago about aluminum causing Alzheimer's Disease.

It is generally recommended to season aluminum by boiling water (or coffee) in the vessel.  This puts an even layer of aluminum oxide over the entire surface, which acts as a corrosion inhibitor for subsequent brews.  It is important not to use an abrasive cleaner once the vessel has been seasoned, and this will remove the oxide.

Alan
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