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johnnybgoodetonight
Senior Member


Joined: 2 Aug 2012
Posts: 4
Location: portland
Expertise: Just starting

Posted Thu Aug 2, 2012, 7:44am
Subject: Looking for coffee data
 

Hello.

I am new to coffee and this is my first post on coffee geek. I'm looking to understand all the variables and interactions in the system of brewing coffee.

I'm looking for quantified documented brews that would include things like, particle size vs. extraction, extraction and/or strength vs. time, anything vs. time really.. My goal is to acquire enough data to create somewhat of an accurate computer model for a coffee. I understand it will never be accurate and that coffee is variable.

Links? comments?

Thanks!
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NobbyR
Senior Member
NobbyR
Joined: 10 Jul 2011
Posts: 2,058
Location: Germany
Expertise: I love coffee

Espresso: Poccino Opus One, Ariete
Grinder: Eureka Mignon Istantaneo
Vac Pot: N/A
Drip: Melitta Linea Unica de Luxe
Roaster: N/A
Posted Thu Aug 2, 2012, 8:05am
Subject: Re: Looking for coffee data
 

Welcome to CoffeeGeek!

That's one heck of a challenge you've chosen! Just for espresso the factors that influence the brewing process are numerous and include age and degree of roasting of the coffee beans, type of beans, fineness of grounds, humidity, dose, distribution, tamping pressure, and brewing temperature to name but a few. And all of those parameters interact, of course. It'll be very hard to create a computer model of that. Good luck!

 
***
"This drink of the Satan is so delicious that it would be a shame to leave it to the infidels." (Pope Clement VIII on coffee, when he was urged to ban the beverage)
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calblacksmith
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calblacksmith
Joined: 25 Nov 2007
Posts: 7,950
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Thu Aug 2, 2012, 8:59am
Subject: Re: Looking for coffee data
 

Scott Rao has two excellent books that will help you to start to understand what is involved.
http://www.professionalbaristashandbook.com/purchase.html
Both books are nearly a must have for anyone serious into coffee.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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johnnybgoodetonight
Senior Member


Joined: 2 Aug 2012
Posts: 4
Location: portland
Expertise: Just starting

Posted Thu Aug 2, 2012, 5:41pm
Subject: Re: Looking for coffee data
 

Thank you. My roommate lent me the same book. I'm looking for scientific type papers where "experiments" were done. Anyone know where I can find data like "particle size vs. extraction, extraction and/or strength vs. time, anything vs. time really.."?
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johnnybgoodetonight
Senior Member


Joined: 2 Aug 2012
Posts: 4
Location: portland
Expertise: Just starting

Posted Thu Aug 2, 2012, 5:43pm
Subject: Re: Looking for coffee data
 

not espresso
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Netphilosopher
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Joined: 14 Jan 2011
Posts: 1,602
Location: USA
Expertise: Just starting

Posted Fri Aug 3, 2012, 4:43am
Subject: ...
 

...
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,950
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Fri Aug 3, 2012, 5:52am
Subject: Re: Looking for coffee data
 

Nice post Steve!

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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jpender
Senior Member
jpender
Joined: 11 Jul 2011
Posts: 719
Location: California
Expertise: I like coffee

Grinder: OE LIDO
Vac Pot: S/S Moka Pot
Drip: Aeropress
Posted Fri Aug 3, 2012, 9:13am
Subject: Re: Looking for coffee data
 

Netphilosopher Said:

Unfortunately, much of the technical papers for food industry science is "owned" (for lack of a better word) by Wiley Online or affilliates with a similar business model.  

Example:  
Click Here (onlinelibrary.wiley.com)

Great paper on infusion kinetics.  Unless you're at a university, access to just this paper for 24 hours is ~$40.

Posted August 3, 2012 link

If you're in Portland, OR you might be able to access this journal through the Multnomah County Library. You can call (or do an online chat) and ask them directly.


Netphilosopher Said:

For instance, many assume that if you grind coffee, mix it with hot water, and let it steep for 1/2 hour - you will automatically end up with extremely overextracted coffee.  Nothing is further from the truth.  If this were the case, than the procedure of cupping wouldn't work, right?

Posted August 3, 2012 link

Maybe you've already read this, Steve?

Click Here (www.jimseven.com)
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Netphilosopher
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Joined: 14 Jan 2011
Posts: 1,602
Location: USA
Expertise: Just starting

Posted Fri Aug 3, 2012, 12:05pm
Subject: ...
 

...
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johnnybgoodetonight
Senior Member


Joined: 2 Aug 2012
Posts: 4
Location: portland
Expertise: Just starting

Posted Sat Aug 4, 2012, 7:36pm
Subject: Re: Looking for coffee data
 

Thank you! I'm at a university and can access it for "free"
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