Fiorenzato Bricoletta - A Pro's Perspective - Page 6

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lennoncs

#51: Post by lennoncs »

malachi wrote:I fear at least one of the gauges is inaccurate.
The question is...which one?

I feel your pain...it is a common beef I have with many suppliers of "instrumented" equipment, it is not instrumented per se but just has a cheap gauge on it.



sean

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malachi (original poster)

#52: Post by malachi (original poster) »

Given that neither read actual brew pressure (since there is no flow) it's pretty much impossible to know. The good news is that I don't have to use either (grin).

Then again, I do wish the Bricoletta came with a brew pressure gauge.
"Taste is the only morality." -- John Ruskin

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AndyS

#53: Post by AndyS »

Abe Carmeli wrote: I found that fluctuations in voltage greatly affect brew pressure at least on a vibe pump. 5 volts fluctuation will produce ~0.3 bar difference. I don't know how it applies to rotary pumps though. On my home Machine I use a variac to reduce voltage from 115 to 100 volts and saw 1 bar difference in brew pressure.
A 5 volt variance won't affect rotary pumps, but will, as you observe, change the output of a vibe. That is how, using a variac, Jim Schulman tested brew pressure profiles on his home machine.
-AndyS
VST refractometer/filter basket beta tester, no financial interest in the company

Caffewerks

#54: Post by Caffewerks »

The Horror.

Chris Tacy has become a techno coffee geek!

Save yourself man. Put the body back on that machine and get back to the coffee!

Next thing I know you going to be hanging out in my basement tearing things apart (Wait, that actually could be a good thing). Carry on.

So tell me more about your PSI and temperature Mr. Tacy........

Abe Carmeli
Team HB

#55: Post by Abe Carmeli »

malachi wrote:Given that neither read actual brew pressure (since there is no flow) it's pretty much impossible to know.
Chris,

I tested the brew pressure differences using you parameters 1.75 oz in 28 seconds, and I believe your 0.8 bar difference reading may be the accurate one. My reading was 0.78 bars difference. Again, this was done on a vibe pump.
Abe Carmeli

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malachi (original poster)

#56: Post by malachi (original poster) »

So I spent a long time over the last couple of days trying to figure out if there is any consistent difference in results with changes in brew pressure across many coffees.

It's been very frustrating.
The whole methodology for adjusting/managing brew pressure is far too inaccurate and mechanical.

That being said, I have to say that the ability to dial the brew pressure in with any degree of consistency is a huge win with this machine. I've always been frustrated by both the mechanics and the results with vibe pumps (yes, I know that there are ways to stabilize and manage vibe pumps far better but I'm not practiced with them). It's incredibly nice to be able to just dial the pressure up or down and pull shots, taste, dial some more.... It's not only fun to experiment in this manner - it's also incredible to have this additional control.

While I may not be learning as much as I would like right now, I am getting to drink some truly fantastic espresso. Yes... there are obviously compromises and it's not fair or accurate to say that the Bricoletta is "as good" as something like the Mistral or Synesso. But the ways in which it is "not as good" are often more abstract (ergonomics) or convenience related (HX vs double boiler) or irrelevant to me (yeah, I can't easily steam 20oz of milk like I can with a commercial machine).

Sure... the Bricoletta is harder to get great shots out of than a Synesso. But if you have the skill, the shots are just as good. The milk is just as good. The drinks are just as good.

And that, that is amazing.
"Taste is the only morality." -- John Ruskin

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AndyS

#57: Post by AndyS »

malachi wrote:So I spent a long time over the last couple of days trying to figure out if there is any consistent difference in results with changes in brew pressure across many coffees.

It's been very frustrating.
The whole methodology for adjusting/managing brew pressure is far too inaccurate and mechanical.

That being said, I have to say that the ability to dial the brew pressure in with any degree of consistency is a huge win with this machine.
Good timing for your post. I just got off the phone with John Bicht from Versalab. Coincidentally, he's been doing some experiments with brew pressure on his M3 espresso machine (which provides electronic brew pressure control). He previously said that changes of 0.1 bar in brew pressure were distinguishable, but now he thinks that 0.05 bar may produce a noticable difference.
-AndyS
VST refractometer/filter basket beta tester, no financial interest in the company

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malachi (original poster)

#58: Post by malachi (original poster) »

The review is nearly done...

If anyone has any final questions, things they would like evaluated or points they would like examined in the review... speak now or forever hold your peace.
"Taste is the only morality." -- John Ruskin

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malachi (original poster)

#59: Post by malachi (original poster) »

One thing you may have noticed in this review is that I've never posted any pictures of the steam wand.

Well... the Bricoletta provided for this review was an early version of the new and improved Bricoletta, with a new style of wand.

I'll post pictures tomorrow.

In the meantime... It's been fun!!
"Taste is the only morality." -- John Ruskin

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malachi (original poster)

#60: Post by malachi (original poster) »

And it all comes to a close.
It's been really fun.

To sign off... here are some final photos of the machine.

First - to illustrate my "art deco" comments...
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And, per my promise, some shots of the new, improved steam wand. I think this is a Cimbali set-up (which most people consider to be one of the best out there).
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Thanks so much for all your input, support and involvement.
It's been fun.

For future comments, check out the Article Feedback thread.
"Taste is the only morality." -- John Ruskin