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Date: 15 Feb 2007 18:58:34
From: josefr
Subject: Coffee oil extraction
Hello
Does anyone know anything about coffee oil extraction using a
extruder? Or the methid of how to extract coffee oil from instant
coffee?





 
Date: 18 Feb 2007 06:10:28
From: Omniryx@gmail.com
Subject: Re: Coffee oil extraction
On Feb 16, 11:04 pm, "josefr" <retromez...@gmail.com > wrote:
> The extracted coffee would be used to know the estimated quantity to
> add to an instant coffee aromatization

Do "instant coffee" and "aroma" belong in the same sentence?



 
Date: 16 Feb 2007 20:04:32
From: josefr
Subject: Re: Coffee oil extraction
The extracted coffee would be used to know the estimated quantity to
add to an instant coffee aromatization and the aroma of the coffee (to
compare it to the extracted oil).
Yes, there is very little oil in instant coffee. I estimate about
0.15% weight.
The oil can be seen in instant coffee when one prepares the cup, small
drops on the surface.
Thank's for your answers




 
Date: 16 Feb 2007 14:37:50
From: Calvin
Subject: Re: Coffee oil extraction
On Feb 15, 8:58 pm, "josefr" <retromez...@gmail.com > wrote:
> Hello
> Does anyone know anything about coffee oil extraction using a
> extruder? Or the methid of how to extract coffee oil from instant
> coffee?

Here is an answer I got over on the sm mailing list to extract the
essential oil:
>I triple sonicated the ground coffee in an organic solvent (MeCl2 or
>Hx maybe), filtered it through Na2SO4 to dry it, then blew the
>solvent off in a heated water bath under a stream of nitrogen.

Hope that helps :). It's not an oil in the common sense of the word
like sunflower or palm. It is an essential oil that comes out with
this process.



 
Date: 16 Feb 2007 09:53:58
From: Omniryx@gmail.com
Subject: Re: Coffee oil extraction
On Feb 15, 9:58 pm, "josefr" <retromez...@gmail.com > wrote:
> Hello
> Does anyone know anything about coffee oil extraction using a
> extruder? Or the methid of how to extract coffee oil from instant
> coffee?

What does one do with the coffee oil after it is extracted?



  
Date: 16 Feb 2007 20:18:59
From: Roger Shoaf
Subject: Re: Coffee oil extraction

<Omniryx@gmail.com > wrote in message
news:1171648437.279810.78760@t69g2000cwt.googlegroups.com...
> What does one do with the coffee oil after it is extracted?
>

Lubricate the portafilter gasket of course.




 
Date: 16 Feb 2007 09:11:05
From:
Subject: Re: Coffee oil extraction
On Feb 15, 6:58 pm, "josefr" <retromez...@gmail.com > wrote:
> Hello
> Does anyone know anything about coffee oil extraction using a
> extruder? Or the methid of how to extract coffee oil from instant
> coffee?

Interesting question.....Im not sure about doing the extraction with
the extruder, but I would expect very minimal oil remaining in the
instant coffee. As a matter of fact, their is so little oil that many
manufacturers reconstitute essential oils into the can after canning -
one method is to condense the vapors given off during roasting. The
common "psssss" that comes out of a newly opened can of instant it not
due to its freshness, but rather the gases added (under pressure) into
the can.

javajoe
www.coffeechemistry.com