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Date: 08 Jun 2006 09:29:02
From: ROO
Subject: FB 70 vs GB 5
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I frequent a pair of coffee houses run by the same people. Both shops
use the same blend but one has a FB 70 and the other has a GB 5. After
weeks of adjustment and fiddling around they have managed to produce
what I perceive to be identical tasting shots except that the shot from
the older FB 70 has more body. The shot from the GB 5 seems a little
more transparent. Both shots have the same volume and are the same temp
and take the same amount of time and begin with the same amount of
coffee. Has La Marzocco tweeked the basket on the new machine? Is there
any other avenue to explore?
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Date: 08 Jun 2006 10:35:54
From:
Subject: Re: FB 70 vs GB 5
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ROO wrote:
> I frequent a pair of coffee houses run by the same people. Both shops
> use the same blend but one has a FB 70 and the other has a GB 5. After
> weeks of adjustment and fiddling around they have managed to produce
> what I perceive to be identical tasting shots except that the shot from
> the older FB 70 has more body. The shot from the GB 5 seems a little
> more transparent. Both shots have the same volume and are the same temp
> and take the same amount of time and begin with the same amount of
> coffee. Has La Marzocco tweeked the basket on the new machine? Is there
> any other avenue to explore?
Maybe the two machine's Gicleurs(if they have any) are different, which
could contribute to in the cup differences. Different grinders, maybe
pressure, maybe water, even temp stability could all cause this as
well...
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Date: 09 Jun 2006 08:18:18
From: gscace
Subject: Re: FB 70 vs GB 5
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Presuming the FB70 is an auto, then the pressure rampup is faster than
on the GB5 if the GB5 has new style group caps. The FB70 will be
harder to keep up to temperature compared to the GB5, since the GB5 has
feedwater preheat and the FB70 does not.
I would want to know the actual pressures and temperatures at which the
machines are brewing. Plus, to make really meaningful comparisons the
machines will have to be fed identical coffee (same roast batch),
ground by the same grinder, and fed the same water.
Last winter I had the distinct pleasure of simultaneously using a GS3
prototype and my PID'd Linea. Both machines were installed across the
aisle from each other in my little basement kitchen (Espresso Research,
LLC lab) and I had the opportunity to directly compare shots and
improve the deficient machine. I was able to use the same water
source, same grinder. I had the measurement equipment on hand to make
heads or tails of my progress, and finally got to where the Linea
performed similarly to the GS3 in terms of taste. It took a lot of
work and careful control of testing parameters, something that will be
very hard to do if one machine is located in a different shop from the
other.
-Greg
ROO wrote:
> I frequent a pair of coffee houses run by the same people. Both shops
> use the same blend but one has a FB 70 and the other has a GB 5. After
> weeks of adjustment and fiddling around they have managed to produce
> what I perceive to be identical tasting shots except that the shot from
> the older FB 70 has more body. The shot from the GB 5 seems a little
> more transparent. Both shots have the same volume and are the same temp
> and take the same amount of time and begin with the same amount of
> coffee. Has La Marzocco tweeked the basket on the new machine? Is there
> any other avenue to explore?
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Date: 09 Jun 2006 07:32:18
From: ROO
Subject: Re: FB 70 vs GB 5
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transparent as opposed to full body Like if you take a shot from the
GB70 and dilute it with water just a little.. The shop is going to
reheat shots from both machines to try to do a blind tasting. They are
also going to swap baskets .
Andy Schecter wrote:
> Omniryx@gmail.com wrote:
> > Have you done a double-blind comparison?
>
> The machines are located at two different shops, and you want to know if he's
> done a double-blind?
>
> I think it's pretty safe to say that the answer is "no." :-)
>
> --
>
>
> -Andy S.
>
> http://www.flickr.com/photos/andy_s/sets/
> http://tinyurl.com/eh0x
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Date: 09 Jun 2006 05:01:43
From: Omniryx@gmail.com
Subject: Re: FB 70 vs GB 5
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Have you done a double-blind comparison?
daveb wrote:
> "transparent"??
>
>
> dave
>
> ROO wrote:
> > I frequent a pair of coffee houses run by the same people. Both shops
> > use the same blend but one has a FB 70 and the other has a GB 5. After
> > weeks of adjustment and fiddling around they have managed to produce
> > what I perceive to be identical tasting shots except that the shot from
> > the older FB 70 has more body. The shot from the GB 5 seems a little
> > more transparent. Both shots have the same volume and are the same temp
> > and take the same amount of time and begin with the same amount of
> > coffee. Has La Marzocco tweeked the basket on the new machine? Is there
> > any other avenue to explore?
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Date: 09 Jun 2006 12:52:34
From: Andy Schecter
Subject: Re: FB 70 vs GB 5
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Omniryx@gmail.com wrote:
> Have you done a double-blind comparison?
The machines are located at two different shops, and you want to know if he's
done a double-blind?
I think it's pretty safe to say that the answer is "no." :-)
--
-Andy S.
http://www.flickr.com/photos/andy_s/sets/
http://tinyurl.com/eh0x
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Date: 08 Jun 2006 23:52:24
From: daveb
Subject: Re: FB 70 vs GB 5
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"transparent"??
dave
ROO wrote:
> I frequent a pair of coffee houses run by the same people. Both shops
> use the same blend but one has a FB 70 and the other has a GB 5. After
> weeks of adjustment and fiddling around they have managed to produce
> what I perceive to be identical tasting shots except that the shot from
> the older FB 70 has more body. The shot from the GB 5 seems a little
> more transparent. Both shots have the same volume and are the same temp
> and take the same amount of time and begin with the same amount of
> coffee. Has La Marzocco tweeked the basket on the new machine? Is there
> any other avenue to explore?
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Date: 09 Jun 2006 22:01:43
From:
Subject: Re: FB 70 vs GB 5
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Basket tweeking no doubt. I think that a law should be passed, that
simply outlaws this type of behaviour.
Happy Friday.....
ROO wrote:
> I frequent a pair of coffee houses run by the same people. Both shops
> use the same blend but one has a FB 70 and the other has a GB 5. After
> weeks of adjustment and fiddling around they have managed to produce
> what I perceive to be identical tasting shots except that the shot from
> the older FB 70 has more body. The shot from the GB 5 seems a little
> more transparent. Both shots have the same volume and are the same temp
> and take the same amount of time and begin with the same amount of
> coffee. Has La Marzocco tweeked the basket on the new machine? Is there
> any other avenue to explore?
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