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Topic: Vac/Vac + Fresh Pak testing Report (9 msgs / 219 lines)
1) From: AlChemist John
Ok, I have brew/smell/taste tested Mike's coffee storage test coffees.  It 
was myself, a friend and my partner (& daughter) all involved in the tasting.
To recap, MM BB profile roasted Jamaican Blue Mountain Moy Hall 02 for me 
on 9/15/02.  It was roasted to light full city 435F for 10:57 mins.  The 
batch was split into three storage containers: a vac sealed w/ oxygen 
packet, a vac sealed, and a ziploc.  Upon arrival, the ziplock could be 
smelled outside the package and was fully loose.  The reg vac was simply 
loose and the vac/packet was still tight.
I single cup drip brewed each cup with a 20g/13oz water ratio, ground with 
a hand burr grinder.
I am going to report these as #1,#2 and #3 and identify them at the end of 
the post.  If anyone feels like guessing and posting their guesses based on 
the info given, that would be neat too.  These were all done double blind.
#1
Unground bean:  loose bag, visually identical to other beans.  Aroma of 
unground bean was found to be slightly acrid by all with little coffee 
aroma.  One person (me) noted a garlic smell (I don't know from where, I 
just report it as I smell it)
Ground bean:     simple coffee aroma, again acrid and bitter to the nose.
Coffee aroma            Weak coffee
Black coffee hot:       Bitter, rather unpleasant aftertaste.  Did not beg 
for another tasting.
Black coffee cool       Very bitter, unpleasant.  No one finished this one.
w/ milk and sugar       Slightly acidic, and not pleasant.  Strong sharp 
"diner" coffee.
w/ milk and sugar cool  Ick, nuff said.
#2
Unground bean:          Everyone found this one the most pleasant unground 
coffee.  Rich, coffee aroma with touches of sweetness and roast smell
Ground bean:            Ditto to unground bean
Coffee aroma            OK.  nice aroma.  Not as nice and full as #3 in the 
nose.  Good roasted smell
Black coffee hot:       Descriptions included a sweet mocha flavor, with a 
slight bitter sweet  balance
Black coffee cool       This one was the favorite as it cooled, although 
slightly milder than #3
w/ milk and sugar       Very nice full coffee.  Chocolate notes came 
through well.
w/ milk and sugar cool  Very close to #3, but general liked the best.
#3
Unground bean:          Nice aroma.  #2 was better
Ground bean:            ditto
Coffee aroma            The best and most complex aroma.
Black coffee hot:       Absolutely the smoothest of the cups.  Full 
chocolate flavor with the most complex mouth feel.  Noted as earthy
Black coffee cool       Still very smooth, although somehow not as 
enjoyable as #2 cool
w/ milk and sugar       Fullest chocolate flavor.  Very nice
w/ milk and sugar cool Very good, but the high smoothness has something 
missing to make it seem rather simple when cool.
Summary
#1              Thanks but no thanks, I'll be sending this one back to MM 
(no really, but I am not brewing the remainder of it)
#2              Best bean aroma but 2nd best coffee aroma.  Very good 
balance and probably the favorite over all.
#3              Best coffee aroma.  Very smooth cup.  Maybe almost too 
smooth.  Probably the best hot and black.
Identities
#1              Ziplock - I bet NO ONE guessed this one 
#2              Vac sealed regular
#3              Vac sealed w/ "fresh pack"
It seems that whereas the scrubber made for a smooth cup, it also took a 
little complexity along with it.  Worth it?  We will see what everyone else 
says.
Thanks Mike.  That was fun.  Next test?
--
John Nanci 
AlChemist at large
Roasting and Blending by Gestalt
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2) From: John
John
I guess I missed the initial descriptions - what is the physical
difference between Vac Sealed Regular and Vac Sealed /W "Fresh Pack"????
On Sat, 2002-10-05 at 15:18, AlChemist John wrote:
<Snip>
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3) From: Mark A. Chalkley
The "Fresh Pack" is an Oxygen absorber pack - looks like the
ubiquitous "Do Not Eat" desiccant packs.
On Saturday, October 5, 2002, 5:09:53 PM, you wrote:
J> John
J> I guess I missed the initial descriptions - what is the physical
J> difference between Vac Sealed Regular and Vac Sealed /W "Fresh Pack"????
J> On Sat, 2002-10-05 at 15:18, AlChemist John wrote:
<Snip>
J>
J> homeroast mailing list
J>http://lists.sweetmarias.com/mailman/listinfo/homeroast">http://lists.sweetmarias.com/mailman/listinfo/homeroasthomeroast mailing listhttp://lists.sweetmarias.com/mailman/listinfo/homeroast

4) From: John
Thanks Mark!
On Sat, 2002-10-05 at 16:54, Mark A. Chalkley wrote:
<Snip>
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5) From: AlChemist John
Sometime around 14:09 10/5/02, John typed:
<Snip>
Mike sealed both with his vacuum sealer.  In one he placed a packet which 
contained some chemical (mike?) that absorbs oxygen and carbon dioxide.
--
John Nanci 
AlChemist at large
Roasting and Blending by Gestalt
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6) From: Mike McGinness
From: "AlChemist John" 
<Snip>
powdered iron oxidehttp://www.sorbentsystems.com/o2absorbers.htmlMM;-)
Variable Variac Rockin' Rosto Roasting in Vancouver, WA USA
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7) From: Mike McGinness
Great report John. I doubt I'll be able to do as well but will try.
Next test? Well, let's see... if you're in Vancouver the 20th Les & I'll be
cupping Konas from a number of Estates (as well as doing the freshness test
cupping, with the addition of 3 day rest fresh roast control batch). You're
welcome to pop up and join us!
Then there'll be a long term vac freezer storage test some time in the
future (with and without Fresh Paks maybe). And greens multi-year vac'
storage test in progress, year two soon.
But for now dinner's ready!
MM;-)
Variable Variac Rockin' Rosto Roasting in Vancouver, WA USA
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8) From: EskWIRED
<Snip>
AFAIK, the chemical which absorbs oxygen is iron.  It absorbs the oxygen by
forming rust inside the packet.
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9) From: AlChemist John
Sometime around 19:10 10/5/02, Mike McGinness typed:
<Snip>
Thanks, and here I thought it was rather generic
<Snip>
Thanks again, but I doubt it will happen
<Snip>
That would be neat.
BTW, one final note about the stored coffees.  None of them bloomed when 
brewed.  Seems to be a fresh roast only item.
--
John Nanci 
AlChemist at large
Roasting and Blending by Gestalt
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