HomeRoast Digest


Topic: storage > RE: +Pop Corn Popper and roasting beans (6 msgs / 160 lines)
1) From: miKe mcKoffee
Maybe to reduce confusion devices like the FoodSaver should be called
atmosphere evacuator sealers instead of vacuum sealers:-) 
Pacific Northwest Gathering Vhttp://home.comcast.net/~mckona/PNWGV.htmKona Kurmudgeon miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
Sweet Maria's List - Searchable Archiveshttp://themeyers.org/HomeRoast/	From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Larry Johnson
	Sent: Thursday, April 12, 2007 12:54 PM
	
	OK, I'll bite. 
	
	When miKe mcKoffee vac-seals his beans, they are not residing in a
vacuum; they are still under the same amount of atmospheric pressure as
before. The vac-seal just removes the air from the container, allowing the
plastic material to snuggle right up to the beans. Air pressure outside the
container presses the plastic and the beans tightly together, drastically
reducing the venting of moisture (it's got nowhere to go, and all day to get
there). There are pockets of low pressure in the gaps, but total volume of
that area is probably very small. If this were not true (or something like
it) then vac-sealing food wouldn't work very well either, but it does.

2) From: Brett Mason
They could be called plastic bag sealers - but what do I know?
Brett
On 4/12/07, miKe mcKoffee  wrote:
<Snip>
-- 
Cheers,
Bretthttp://homeroast.freeservers.com

3) From: miKe mcKoffee
But if a plastic bag sealer then how could you use it to atmosphere evacuate
and seal a glass canning jar with a metal dome lid?-)
Pacific Northwest Gathering Vhttp://home.comcast.net/~mckona/PNWGV.htmKona Kurmudgeon miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
Sweet Maria's List - Searchable Archiveshttp://themeyers.org/HomeRoast/	From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Brett Mason
	Sent: Thursday, April 12, 2007 1:50 PM
	
	They could be called plastic bag sealers - but what do I know?
	Brett

4) From: Brett Mason
Perhaps I'll just settle to have one of the last words...  there's no sense
trying to get into another of the ethereal vacuum environmentalistic
diatribes.....
Here's to good coffee.
All else is noise,
  Brett
     RWA
On 4/12/07, miKe mcKoffee  wrote:
<Snip>
-- 
Cheers,
Bretthttp://homeroast.freeservers.com

5) From: gene nandrea
What the heck, I'll try. If the beans are placed in a closed system whether
it is a vacuum (reduced pressure enviornment) or any other pressure, the
water content of the beans will eventually, given enough time, reach an
equilibrum with the water content of the vapor left inside the container. If
the the beans have a higher water content they will loose water. If the
residual vapor has a higher content of water the beans will gain water. Most
likely the beans will have a higher water content and will loose some water.
If the container is continually opened and closed there will be a slow loss
of water in the beans. This is different than a continually pulled vacuum or
a heated open system or even a room temperature open system. Here in Denver
the beans will probably loose some moisture if left in the open and on the
coast might gain some moisture. I think the advantage of a sealed lowered
pressure system would be that there is incrementally less oxygen to cause
deterioration. Possibly an inert atmosphere (nitrogen) might be better for
this type of storage --- BUT--- I would be very concerned about removing all
oxygen for a food product stored this way. Think anerobic bacteria and
botulism. Again to be clear, vacuum storage reduces the air pressure and is
safe because some oxygen is still present.
Gene
On 4/12/07, Brett Mason  wrote:
<Snip>

6) From: John Moody
The Sivetz patent reports interesting data on the subject of O2 and vacuum
packaging.
Patent number: 6514552, Feb 4, 2003http://www.google.com/patents?vidPAT6514552&id8NAAAAEBAJ&dq=6,514,552 RE: +Pop Corn Popper and roasting beans
Perhaps I'll just settle to have one of the last words...  there's no sense
trying to get into another of the ethereal vacuum environmentalistic
diatribes.....
Here's to good coffee.
All else is noise,
  Brett
     RWA


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