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Breville Dual Boiler BES900XL Owners Thread
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occoffeefan
Senior Member


Joined: 26 Sep 2008
Posts: 61
Location: Orange County, CA
Expertise: I love coffee

Espresso: Breville Dual Boiler
Grinder: Baratza Vario W, Mazzer Mini...
Roaster: Behmor
Posted Thu Jul 18, 2013, 10:57pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

carz07 Said:

when do you cut the first pull? you say when it starts to blond? meaning you are pulling at 9bar after the experimental preinfusion
its starts to blond almost on the end part of the shot right, so you cut the normal pull here
then to finish the shot weight you hit again the manual button, but no drop/flow will come out until the pump kicks in and pressure hits back to 9bars and then you cut this short since your almost near the aimed weight

Posted July 18, 2013 link

I watch for rapid flow with blonding...at about 20 grams. I have about 7 grams left  to pull at the lower pressure.
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michaelgo
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Joined: 21 Jan 2012
Posts: 108
Location: Rancho Cucamonga, CA
Expertise: I love coffee

Espresso: Breville 900XL
Grinder: Baratza Vario
Posted Fri Jul 19, 2013, 9:23am
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

occoffeefan Said:

Heather and I noticed that the BDB tends to increase flow more rapidly at the end of the shot .

Posted July 17, 2013 link

Quick question.  Which class did you take, the one day barista, or just the latte art?

Michael
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jamierayo
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Joined: 24 Mar 2013
Posts: 111
Location: Alaska
Expertise: I love coffee

Espresso: Breville DB, Rancilio Silvia
Grinder: Mazzer Major, Mini E,...
Drip: Aeropress, Kalita Wave
Roaster: iRoast2, Behmor
Posted Fri Jul 19, 2013, 9:47am
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

occoffeefan Said:

Heather and I noticed that the BDB tends to increase flow more rapidly at the end of the shot...

Posted July 17, 2013 link

Did you try cracking open the hot water valve at the end of the shot during the class?
I'd like to know if Heather had an opinion of this method of decreasing flow, especially compared to a stop & restart.
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occoffeefan
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Joined: 26 Sep 2008
Posts: 61
Location: Orange County, CA
Expertise: I love coffee

Espresso: Breville Dual Boiler
Grinder: Baratza Vario W, Mazzer Mini...
Roaster: Behmor
Posted Fri Jul 19, 2013, 12:05pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

michaelgo Said:

Quick question.  Which class did you take, the one day barista, or just the latte art?

Michael

Posted July 19, 2013 link

The private one day session
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michaelgo
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Joined: 21 Jan 2012
Posts: 108
Location: Rancho Cucamonga, CA
Expertise: I love coffee

Espresso: Breville 900XL
Grinder: Baratza Vario
Posted Fri Jul 19, 2013, 12:06pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

occoffeefan Said:

The private one day session

Posted July 19, 2013 link

Now I'm suitably impressed. LOL  She's great isn't she?

Michael
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occoffeefan
Senior Member


Joined: 26 Sep 2008
Posts: 61
Location: Orange County, CA
Expertise: I love coffee

Espresso: Breville Dual Boiler
Grinder: Baratza Vario W, Mazzer Mini...
Roaster: Behmor
Posted Fri Jul 19, 2013, 12:08pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

jamierayo Said:

Did you try cracking open the hot water valve at the end of the shot during the class?
I'd like to know if Heather had an opinion of this method of decreasing flow, especially compared to a stop & restart.

Posted July 19, 2013 link

This flow experiment I did on my own after the class.   I noticed new high end espresso machines have pressure profiling and wondered if that could be achieved on the Breville using preinfusion pressure.  In the class we weighed the final shots and cut off the shot about 3 grams early to achieve the final desired weight.  We did not open the hot water valve during the pull to change the flow rates during the shot or discuss pressure profiling.
I have noticed on the new /b machine which I have, if you crack open the hot water valve  during the shot pull and then  close it it will stop the shot. I think on the /A model it did not stop the shot when you closed the valve.
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donner
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Joined: 17 Apr 2013
Posts: 34
Location: Canada
Expertise: I like coffee

Posted Fri Jul 19, 2013, 12:19pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

The Vario-W weighs the ground coffee every time.  I don't weigh the shot every time.  

Whether that is necessary may depend on what type of cup one uses.  We drink mainly Americanos or milk drinks out of 6 or 7 ounce clear glass cups.  The cups are quite narrow at the bottom and widen considerably towards the top - the type of cup that has the removable stainless steel handle.  We brought them back from Spain where they are popular in coffee shops.  

That allows one to visually view the amount of liquid in the shot and to cut the flow at the right time.  One can weigh a few shots and make a note of the level in the cup.  This method may not be quite as accurate as a scale, but it works well and is easy to do.  

With the BDB, the built in timer also helps.  Once you have your grind and tamp mastered, shot times don't vary much.
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occoffeefan
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Joined: 26 Sep 2008
Posts: 61
Location: Orange County, CA
Expertise: I love coffee

Espresso: Breville Dual Boiler
Grinder: Baratza Vario W, Mazzer Mini...
Roaster: Behmor
Posted Fri Jul 19, 2013, 12:38pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

michaelgo Said:

Now I'm suitably impressed. LOL  She's great isn't she?

Michael

Posted July 19, 2013 link

She is very easy going and knowledgeable.  It was a treat being able to  work with her  for a full day to achieve great shots on my own equipment, learn latte Art and be able to play with professional machines such at the Nuovo Simonelli and the La Marzocco and compare those to the BDB.
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carz07
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carz07
Joined: 20 Oct 2012
Posts: 211
Location: Philippines
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Espresso: Breville Dual Boiler
Grinder: Baratza Vario, Bodum Bistro,...
Drip: V60, Phin, Bonmac, Ame. Drip
Posted Fri Jul 19, 2013, 5:44pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

occoffeefan Said:

I watch for rapid flow with blonding...at about 20 grams. I have about 7 grams left  to pull at the lower pressure.

Posted July 18, 2013 link

ok got it thanks

any note on higher preinfusion and lower preinfusion pressure difference?

 
Travel the world with a cup of coffee
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occoffeefan
Senior Member


Joined: 26 Sep 2008
Posts: 61
Location: Orange County, CA
Expertise: I love coffee

Espresso: Breville Dual Boiler
Grinder: Baratza Vario W, Mazzer Mini...
Roaster: Behmor
Posted Sat Jul 20, 2013, 10:08pm
Subject: Re: Breville Dual Boiler BES900XL Owners Thread
 

New BES920 announced in Australia from Phil McKnight on the Coffeesnobs forum..  details:

Breville's New BES920 Dual Boiler Debut at Aroma this Sunday (7/21)
Just a heads up for all Snobs heading to Aroma Festival this weekend in Sydney, we'll be debuting our BES920 Dual Boiler. Never seen in public before, this is a significant ugrade to the highly successful BES900. We'll have 2 on display for use by anyone wanting to put it through its paces. Improvements include:

2400W Heating system
Descale access by the user
Adjustable Steam Boiler Temp (pressure)
Volumetrics: able to select either time based or volume based
Exclusive Razor precision dosing tool

Cheers, Phil

more details from another post on coffeesnobs
1) Self descaling system - able to be descaled by the user
2) More accurate shot dose using a single flow meter design
3) Improved design on double spout
4) Improved design on filter holder ramps
5) Improved material on shower head o-ring to reduce corrosion
6) Improved filter baskets design to reduce puk sticking
7) Higher wattage (2400W)
8) Adjustable steam boiler temperature to allow high steam wand pressure
9) New 480ml jug matched to the capacity of the steam system
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