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When does the rubber gasket on a stovetop espresso maker need to be changed?
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mkraft
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Joined: 19 Jan 2005
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Espresso: Bialetti Caffetiera stovetop...
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Posted Tue Aug 26, 2008, 8:07pm
Subject: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

I'm wondering how to tell when to change the rubber gasket on the Bialetti stovetop espresso maker I use.

I realize that if there are obvious signs (cracks, tears, etc.) the gasket should be changed.

Is there any need to change it periodically even without such signs of wear -- i.e., does the rubber break down chemically, possibly contaminating the coffee ?

Thanks.
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bassmannate
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Posted Sat Aug 30, 2008, 6:39am
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

There shouldn't be any reason to change the gasket unless it is visibly damaged. The most common thing to happen is someone has left their moka pot on the stove too long and the gasket burns. I've never had this happen to me but from what I've read, it's a mess.

Don't worry. No need to "regularly" change the gasket. Although it might not hurt to keep a spare on hand just in case.
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CoffeeRoastersClub
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Posted Sat Aug 30, 2008, 8:01am
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

mkraft Said:

I'm wondering how to tell when to change the rubber gasket on the Bialetti stovetop espresso maker I use.

I realize that if there are obvious signs (cracks, tears, etc.) the gasket should be changed.

Is there any need to change it periodically even without such signs of wear -- i.e., does the rubber break down chemically, possibly contaminating the coffee ?

Thanks.

Posted August 26, 2008 link

When it leaks repeatedly.  There really is no other reason to replace a gasket unless it is breaking apart and contaminating the coffee.

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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mkraft
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Joined: 19 Jan 2005
Posts: 78
Location: U.S.A.
Expertise: I love coffee

Espresso: Bialetti Caffetiera stovetop...
Grinder: KitchenAid Pro Line...
Posted Sat Aug 30, 2008, 4:11pm
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

CoffeeRoastersClub Said:

When it leaks repeatedly.  There really is no other reason to replace a gasket unless it is breaking apart and contaminating the coffee.

Posted August 30, 2008 link

Thanks for those replies.  By 'contamination' I meant not from any visible signs (pieces of gasket actually coming off during brewing, etc.) but from the chemical breakdown of the rubber (or other materials, if any) in the gasket from repeated exposure to high heat.
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CoffeeRoastersClub
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CoffeeRoastersClub
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Posted Sat Aug 30, 2008, 7:41pm
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

mkraft Said:

Thanks for those replies.  By 'contamination' I meant not from any visible signs (pieces of gasket actually coming off during brewing, etc.) but from the chemical breakdown of the rubber (or other materials, if any) in the gasket from repeated exposure to high heat.

Posted August 30, 2008 link

I would imagine that the issue of chemical breakdown of the gasket has already been vetted years ago.  Anything in the moka pot, at least Bialetti made, is food quality material.  I think that is pretty much guaranteed, coming from such a well known and historied manufacturer.  

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

Bitcoin Merchant www.CoffeeRoastersClub.com     www.javaPRO-CRC.com
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mkraft
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Joined: 19 Jan 2005
Posts: 78
Location: U.S.A.
Expertise: I love coffee

Espresso: Bialetti Caffetiera stovetop...
Grinder: KitchenAid Pro Line...
Posted Sun Aug 31, 2008, 8:05am
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

CoffeeRoastersClub Said:

I would imagine that the issue of chemical breakdown of the gasket has already been vetted years ago.  Anything in the moka pot, at least Bialetti made, is food quality material.  I think that is pretty much guaranteed, coming from such a well known and historied manufacturer.

Posted August 30, 2008 link

I imagine Bialetti gaskets can be ordered online but I've never seen them sold in stores, including specialty coffee stores.  When I have replaced gaskets, they've just been stock items sold over the counter (not necessarily even packaged).  Perhaps even those are okay.  Since I haven't seen the concern expressed by anyone else, I guess I'll just assume they are.  (And hope for the best.)

Thanks for your reply.
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Judge
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Posted Mon Sep 1, 2008, 9:49am
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

mkraft Said:

I'm wondering how to tell when to change the rubber gasket on the Bialetti stovetop espresso maker I use.

I realize that if there are obvious signs (cracks, tears, etc.) the gasket should be changed.

Is there any need to change it periodically even without such signs of wear -- i.e., does the rubber break down chemically, possibly contaminating the coffee ?

Thanks.

Posted August 26, 2008 link

Are you getting leakage?  If so you might want to lower how much coffee you put in!  I have noticed that if I over pack my Brikka, it will start to leak long before the pressure release valve will go off.  Actually I have never had the release valve go.  Only leaking at sides.  I got a feeling that Biallati went on the safe side with the seals.  This corp. has been around along time and are very successful at what they do.

IF it still feels soft and rubbery I imagine it is still good.
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Judge
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Joined: 18 Feb 2008
Posts: 228
Location: Montreal
Expertise: Pro Roaster

Espresso: Expobar Brewtus IV,...
Grinder: Baratza Virtuoso, Compak K3...
Drip: Bunn VP-17, Breville...
Roaster: Gene Cafe
Posted Mon Sep 1, 2008, 9:51am
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

Oh and as an after thought.  Has anyone heard of a bialleti exploding?  I got a feeling not!
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indiana
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Joined: 3 Mar 2014
Posts: 1
Location: Australia
Expertise: I like coffee

Posted Mon Mar 3, 2014, 8:37pm
Subject: Re: When does the rubber gasket on a stovetop espresso maker need to be changed?
 

I would be very interested in seeing the chemical vetting of a rubber seal used in drinking coffee. I would be sure it is only vetted up to a certain temperature for a certain time. Here's a list of the different types of silicones and their temperature rating
http://www.auburn-mfg.com/high_temperature_materials.html

I wonder if it might be possible to use a more benign substance like cork? Anyone know of any suppliers? or diy it
Click Here (www.home-barista.com)
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