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Microfoam obsession
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Discussions > Espresso > General > Microfoam...  
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JR
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JR
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Posted Thu Sep 7, 2006, 10:49am
Subject: Re: Microfoam obsession
 

Running water through the group head is good for cleaning the shower screen, but it won't replenish the water that you steamed out.  To do that, you will have to open the steam valve and pump more water in.

Jack

 
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mcKoffee
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Posted Fri Sep 8, 2006, 4:55pm
Subject: Re: Microfoam obsession
 

JR Said:

Running water through the group head is good for cleaning the shower screen, but it won't replenish the water that you steamed out.  To do that, you will have to open the steam valve and pump more water in.

Jack

Posted September 7, 2006 link

Are you sure? I'm fairly certain running water through the group also fills the boiler on Miss Silvia. If it doesn't I got lucky 'cuz that's what I did for the 3&1/2 years I had Missy! But I didn't do a whole lot of steaming the first couple years with Missy so may be wrong. And after really getting into cappuccinos as my second cup of the day have since upgraded to HX rotary Bricoletta.

 
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Jasonian
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Posted Fri Sep 8, 2006, 10:56pm
Subject: Re: Microfoam obsession
 

JR Said:

Running water through the group head is good for cleaning the shower screen, but it won't replenish the water that you steamed out.  To do that, you will have to open the steam valve and pump more water in.

Jack

Posted September 7, 2006 link

I have heard this as well, but I really don't think it's true.

Water doesn't escape the boiler until there is pressure behind it, or the entire boiler would just drain constantly, and water would never have time to heat.

Run some water through the boiler until it's dripping through the shower screen.

Then open the steam valve and hit the boiler switch again.  How long before water escapes?  Was there enough time to give you any reason to believe that there was an air pocket in the boiler?

 
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JR
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JR
Joined: 31 Mar 2003
Posts: 1,821
Location: Germantown, TN (right next to Elvistown)
Expertise: I love coffee

Espresso: Old Coffee Gaggia (x2.5)
Grinder: Cunill Tranquilo
Drip: Bona Vita (Thermal)
Roaster: GG/UFO
Posted Sat Sep 9, 2006, 12:00am
Subject: Re: Microfoam obsession
 

Jasonian Said:

I have heard this as well, but I really don't think it's true.

Water doesn't escape the boiler until there is pressure behind it, or the entire boiler would just drain constantly, and water would never have time to heat.

Run some water through the boiler until it's dripping through the shower screen.

Then open the steam valve and hit the boiler switch again.  How long before water escapes?  Was there enough time to give you any reason to believe that there was an air pocket in the boiler?

Posted September 8, 2006 link

Definitely!  If I steam a few drinks between refilling it, it may go 10 seconds before water comes out.

Jack

 
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CMCM
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Posted Sat Sep 9, 2006, 12:03am
Subject: Re: Microfoam obsession
 

Well, after steaming I've always turned on the brew switch to run water thru the screen...there has always been a certain lag time of maybe up to 5 seconds before the water comes out.  Perhaps when you run the steamer the water flow is diverted from the path it takes out thru the brew head or something.  Also, I wouldn't think steaming one pitcher of milk would totally deplete the boiler, so who knows.
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Jasonian
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Jasonian
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Location: Lubbock, TX
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Posted Sat Sep 9, 2006, 9:12pm
Subject: Re: Microfoam obsession
 

JR Said:

Definitely!  If I steam a few drinks between refilling it, it may go 10 seconds before water comes out.

Jack

Posted September 9, 2006 link

Hmm.. I wonder if it's an OLD Gaggia thing.  I get water instantly.

 
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