Breville BES900 Dual Boiler - Owners thread

[Cooper69S]

Re: Breville BES900 Dual Boiler - Owners thread

The other "lower end" machines made by both Breville and Sunbeam have the black plastic disc on the bottom of the PF and I think its there to insulate the pour from cooling too quickly if you havent properly warmed up your PF. I have removed the disc from my PFs.

not sure if this has been suggested already, but theres a possible secondary purpose for that plastic thing, in steadying the pour from a pressurised basket. I recall trying to use the double-floor basket in my Sunbeam once, when I ran out of beans and only had some very old ones left. Without the plastic insert, the shot came out with too much pressure and squirted out of the spouts with hardly any coffee making it into the cup. made a mess on the machine and bench. Dunno if that same issue applies to the new Breville though...

[Nevin]

Re: Breville BES900 Dual Boiler - Owners thread

Well today I purchased the BDB.  Finally a machine to match my grinder Compak K8 Silenzio.   I tell you, what a huge leap this machine is up from my Sunbeam EM6910.  At this stage I cant say anything bad about the machine, it seems like Breville has covered all the bases with this machine. 8-)

[dr.a.j.pickering]

Re: Breville BES900 Dual Boiler - Owners thread

Either live with it, or  talk to Breville. It isnt something you can change yourself.

You could (the only thing stoping you is the star shaped nuts, which wont stop a CSr) just like on any other machine with an OPV but would void warranty and Breville have set them on the production line with a SCACE II device. 

In a couple of years I am sure you will see posts from people messing with the OPV just as you will see people disscusing doing there own descale

I recall trying to use the double-floor basket in my Sunbeam once, when I ran out of beans and only had some very old ones left.

Why oh Why would you do that, you should vist the coffee confesional I feel some serious "hail phils" coming your way


PS you should read this new thread
http://coffeesnobs.com.au/YaBB.pl?num=1316828375/7#7

[andrewkmita]

Re: Breville BES900 Dual Boiler - Owners thread

Thank you all for the 12 bar pressure responses.

I do get 30 second shots, and Im happy with the coffee I get.

However if arguably the machine is running at 12 bar and you get it adjusted to 9 bar, the size of th grind will change, hence the taste of the coffee will change.

Currently, even though I get 30 sec shots I think the beans need to be ground too fine, much finer than for em6910.

My logic says, reduced pressure will need corser grind and e taste will change slightly.

[Laryngoscope]

Re: Breville BES900 Dual Boiler - Owners thread

From what I can gather it is the OPV and not the gauge. There are at least two people from this forum and the crema forums who have had Phil adjust their OPV to limit 9 Bar and both claim better results because of this.

Of all the variables involved in a good extraction, pressure is possibly the least important which is why most can still get a good cup at 12 bar.

I am sure Breville are instituting production calibration changes as we speak and will offer an adjustment service for current owners (in time).

Any chance that Phil could post instructions on how we can adjust these (OPV) ourselves? Saves a trip back to a metro service centre for those of us that live in the sticks

L

EDIT:

I just read Espresso Docs link above   
http://coffeesnobs.com.au/YaBB.pl?num=1316828375/7#7
Which pretty much covers it  ;D

[pcrussell50]

Re: Breville BES900 Dual Boiler - Owners thread

Any chance that Phil could post instructions on how we can adjust these (OPV) ourselves? Saves a trip back to a metro service centre for those of us that live in the sticks

guessing that since phil works for Breville, he cant really post instructions that could "encourage" new owners to perform actions that that would void the warranty. that said, if said instructions were to make their way into the hands of someone who does NOT work for Breville, who then posts them here, (for instructional purposes only ), then it can at least be seen that the BDB owner voided his warranty by his own choice, instead of being led that way by a Breville employee.

-pete

[Dennis]

Re: Breville BES900 Dual Boiler - Owners thread

both claim better results because of this

We should also factor in the placebo effect.

[samhighley]

Re: Breville BES900 Dual Boiler - Owners thread

We should also factor in the placebo effect.

I dont think "placebo effect" is the right way of looking at it. That would imply that Breville were randomly fixing some machines, and not others.

[dischucker]

Re: Breville BES900 Dual Boiler - Owners thread

I dont think "placebo effect" is the right way of looking at it. That would imply that Breville were randomly fixing some machines, and not others.

No, randomly fixing some and not others is one way of proving the effect is placebo - it doesnt make it a placebo effect - its either there or it isnt.

[Dennis]

Re: Breville BES900 Dual Boiler - Owners thread

What I meant by placebo effect is that if I were to open up your machine and turn a screw, thereby leading you to expect it to perform better, you are far more likely to believe it to be so.

Im not suggesting that there is no improvement. Im just suggesting that part of the improvement might be about perceptions.

[dr.a.j.pickering]

Re: Breville BES900 Dual Boiler - Owners thread

What I meant by placebo effect is that if I were to open up your machine and turn a screw, thereby leading you to expect it to perform better, you are far more likely to believe it to be so.

Im not suggesting that there is no improvement.  Im just suggesting that part of the improvement might be about perceptions.

I agree, I believe that now the needle points to 9 it makes me believe the extraction is better.

It still makes it taste better to me, and after all it is me who is drinking the coffee.

[TC]

Re: Breville BES900 Dual Boiler - Owners thread

now the needle points to 9 it makes me believe the extraction is better

The needle on my GS/3 points to 10.5 Doc. When tested with my Scace II, it points to 9. I dunno which one to get fixed?  :-/

[samhighley]

Re: Breville BES900 Dual Boiler - Owners thread


Ive spent the last few weeks attempting to replicate Phils guide for the perfect extraction, which included the guideline of seeing the first drops of espresso between 11 & 14 secs.

No matter what I did (and ive been through a *lot* of coffee) I could not get anywhere close to the upper end of that range (14 seconds), and still get the other parameters of the extraction within range. In other words, if I wanted to see espresso in 12-13 seconds the entire pour would end up taking 40-50 seconds.

I cant help but think that extraction pressure is the missing variable in my quest.

[dr.a.j.pickering]

Re: Breville BES900 Dual Boiler - Owners thread

I think it is (mainly) placebo, but after all it is a powerful effect.

I know ibuprofen is the same as nurofen but the nurofen still makes more pain go away because of the shiny box.

But after all I am buying it to make the pain go away.

On an another point it was the Scace I assume that calabarted the temprature how do we know that is accurate, beacuse the LCD says 93 ;D

[dr.a.j.pickering]

Re: Breville BES900 Dual Boiler - Owners thread

I cant help but think that extraction pressure is the missing variable in my quest.

I cant help but think that when the OPV is adjusted you will have to find something else to blame, may be the lack of naked PF or no holy grail to extract in to ;D