HomeRoast Digest


Topic: Absorbers > Re: C02- (Was +Exposure to the air) (2 msgs / 88 lines)
1) From: miKe mcKoffee
IRRC the comparison test was with 3 differently packaged roasts of the same 
bean. All packaged directly from roast. Comparison purpose was to see how 
beneficial for longer storage, tested around 3 weeks IIRC. One package 
FoodSaver vac bag sealed, one package FoodSaver vac bag sealed with 
Sorbentsystems Oxygen Absorber added, one package in simple zip lock bag. 
This testing was after discussions of the limitation of home vacuum sealing 
systems to bring O down to extrememly low levels (more typically 85 to 90% O 
removed IIRC) while the absorbers are advertised being able to bring O down 
to 0.01% when used with vac sealing and or nitrogen flush.
One of the problems with the Oxygen Absorbers was/is they are not just 
"oxygen" absorbers. The package states Oxygen AND Carbon Dioxide Absorber, 
CO2 absorbtion is not mentioned on their website description but it is on 
the packages.
I suspect the flatness may have been attributable to the CO2 absorbtion as 
well as near total O removal affecting the proper "aging" or "resting". I 
also suspect that if closed container (not vac'd) rested 2 or 3 days and 
then vac sealed with the Absorbers taste results would have been much 
different.
I still don't believe home mason jar vac sealing detracts from flavor 
developement. I do believe it does slow both the "staling" and the 
"resting". Benefit giving a longer freshness sweet curve. Possible negative 
takes longer rest to peak, a 4 day vac rest more like 1 day non-vac. 
Comparing a 2 day open air rested bean to the same 2 day vac sealed rested 
the open will indeed have more complex flavor development. Compare a 2 day 
open air rest to a 4 or 5 day vac rest and find the vac rest fully 
developed. Compare a 10 day non vac sealed roast to a 10 day vac sealed 
roast and the clear flavor winner with be vac'd.
I've never advocated buying a vac packing system strictly for coffee use. 
That is just one of it's uses. I won't get into the myriad storage features 
and benefits again, done it dozens of times.
Kona Konnaisseur miKe mcKoffee
URL to Rosto mods, FrankenFormer etc.http://mdmint.home.comcast.net/coffee/Rosto_mod.htmFrom: "Alchemist John" 
Sent: Sunday, April 24, 2005 7:51 AM
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2) From: Brett Mason
Hi Mike,
What if the beans were rested more "normally" for say 24 hours, then
transfered to a vac-sealed container afterward for use over a longer
period?
Send the extras this way buddy!
Brett
On 4/24/05, miKe mcKoffee  wrote:
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-- 
Regards,
Brett Mason
 HomeRoast
      __]_
   _(( )_  Please don't spill the coffee!


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