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Discussions > Coffee > Q and A > Breville BES870  
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makia
Senior Member


Joined: 4 Jun 2014
Posts: 2
Location: Newcastle Australia
Expertise: Just starting

Espresso: Breville BES870
Posted Wed Jun 4, 2014, 4:04am
Subject: Breville BES870
 

I purchased a Breville BES870 a few months ago.  Suddenly the expresso gauge now hits high and the water won't flow through properly, I can't tamp the coffee at all and if I do, it won't run through at all.  Does anyone know what the problem may be?
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CMIN
Senior Member


Joined: 14 Jun 2012
Posts: 1,383
Location: South FL
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Preciso
Posted Wed Jun 4, 2014, 6:45am
Subject: Re: Breville BES870
 

What happens if you have the portafilter off, does it run/water flow normally?
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makia
Senior Member


Joined: 4 Jun 2014
Posts: 2
Location: Newcastle Australia
Expertise: Just starting

Espresso: Breville BES870
Posted Sun Jun 15, 2014, 2:16pm
Subject: Re: Breville BES870
 

The water does flow normally with the portafilter off.  I clean the filter basket every time I use it, it is not blocked.
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,786
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Sun Jun 22, 2014, 10:12am
Subject: Re: Breville BES870
 

There are several shortcomings with that machine, the built in grinder is marginal at best, the thermocoil is the least consistent way to heat water regardless of a PID, the dual wall baskets are referred to as Pressurized here but at least they supply you a single wall basket. The "razor" feature is very questionable, dose is by weight and changes by grind so when you "trim off" the top of the dose of beans to a set level, you get different dosses of beans.

Pressurized baskets do not need to be tamped, they just need to be lightly leveled as all the flow resistance is in the pressure device in the basket. The grind changes all the time, when was the last time you adjusted the grind? How old is your coffee, that will change the requirement for grind size.

What is high on the gauge? You should be brewing at about 9 bar of pressure. If it is higher than that, then the pressure device may be malfunctioning, the coffee is not ground properly and the gauge may be having issues but that will not affect the flow of coffee but the first two will.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,786
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Sun Jun 22, 2014, 10:13am
Subject: Re: Breville BES870
 

Mod note, moved from Coffee Q&A to Espresso Q&A

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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PrescottCR
Senior Member
PrescottCR
Joined: 19 Dec 2012
Posts: 117
Location: Prescott
Expertise: Pro Roaster

Espresso: Breville
Grinder: Baratza
Roaster: Diedrich
Posted Tue Aug 19, 2014, 9:26am
Subject: Re: Breville BES870
 

The gauge doesn't have #bar, it has a range for 'good extraction' which is most likely from 8.5 to 9.5 bar.

If you are grinding your coffee fresh then you shouldn't be using pressurized (double wall) baskets. You should be using the single wall baskets.

When was the last time you removed the dispersion screen and cleaned up in the group head? It wouldn't hurt to remove it and have a look at the holes, and what is above it.

My first reaction is to say grind more coarse. If you're already on the most coarse setting then tamp lighter.

Good luck!
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