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Moka Express partial brew after gasket replacement
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doingitwrong
Senior Member


Joined: 27 Apr 2014
Posts: 1
Location: Tulsa, OK
Expertise: Just starting

Posted Sun Apr 27, 2014, 2:27pm
Subject: Moka Express partial brew after gasket replacement
 

Hello folks who know more than I :)

My wife and I have been using Moka Express machines for several years.  I admit that I know pretty much nothing about making coffee apart from the fact that the first cup from my Bialetti taught me that folgers through a Black & Decker automatic drip wasn't something I could continue to call good coffee.

A few times over the years I've had to replace the gaskets in one or another of our various Moka Express machines.  More often than not, after replacing the gasket, the first couple of brews would be incomplete with up to half of the water left in the machines lower chamber.  After a couple of brews this issue always seemed to resolve itself until I replaced my wife's gasket a few days ago.  Since that replacement the machine has yet to complete a brew after 6 or 7 attempts.

I'm assuming that the issue is one of pressure drop, but haven't a clue how to rectify it and ensure that it doesn't happen with any future gasket replacements.  Any advice would be greatly appreciated.

Thanks for taking the time to read and for any help anyone might be able to offer.
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DCcoffeeman
Senior Member
DCcoffeeman
Joined: 19 Oct 2004
Posts: 76
Location: Maryland
Expertise: I love coffee

Espresso: Bialetti stovetop
Grinder: Baratza Virtuoso, Zassenhaus
Vac Pot: French press
Drip: Clever Dripper, Melitta
Roaster: Hottop
Posted Sun Apr 27, 2014, 3:09pm
Subject: Re: Moka Express partial brew after gasket replacement
 

I've used various models of Bialetti for many years.  I have replaced rubber gaskets many times, but never had the problems you have experienced.  A couple of suggestions.  When you replace the gasket, do you take your finger or a blunt instrument and make sure the gasket is securely seated around the metal part?  Also, there are a number of Bialtetti models around and even within the same cup size, there are different size gaskets, sometimes depending on whether a model is stainless steel or aluminum.  Hope this helps.
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jpender
Senior Member
jpender
Joined: 11 Jul 2011
Posts: 699
Location: California
Expertise: I like coffee

Grinder: OE LIDO
Vac Pot: S/S Moka Pot
Drip: Aeropress
Posted Mon Apr 28, 2014, 10:06am
Subject: Re: Moka Express partial brew after gasket replacement
 

My moka pot (not a Bialetti) has this same issue. A new gasket takes some time to form a proper seal. The last time after replacing the gasket it took a lot longer and was very frustrating. I think the replacement gasket was a little stiffer than usual but that's just a guess. I don't know what to tell you; you could try reseating the gasket or perhaps using something other than the Bialetti gasket. I've been tempted to buy a silicone gasket as I suspect it would seal better and also last a lot longer. My gasket finally sealed though and now I'm afraid to touch it.
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