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prescreening your greens?
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Discussions > Coffee > Home Roast > prescreening...  
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Skylar
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Joined: 15 Apr 2004
Posts: 137
Location: New Jersey
Expertise: I love coffee

Espresso: lelit espresso
Grinder: lelit grinder
Vac Pot: B. D. Electric
Drip: chemex
Roaster: wok roast and popper, heat...
Posted Sat Apr 27, 2013, 9:23am
Subject: prescreening your greens?
 

After a cold winter and no roasting the weather here in new jersey warmed sufficiently to get out the greens and start roasting. Since my old Nesco went belly-up I have reverted to iron frying pan over a flame. As such, I get a continuous view of the beans I roast. Doing an espresso blend of a well regarded green supplier, for the first time I noticed a substantial number of gross defects including a charming stone which would have played havoc with my grinder. I will parse the roasted beans before they ever get into my grinder, but, I wonder, have the home roasters who put a number of beans in whatever machines they use, check for abnormalities before they even roast?

Skylar
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MerleApAmber
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Joined: 12 Nov 2012
Posts: 203
Location: Atlanta
Expertise: I love coffee

Espresso: Breville BES900
Grinder: Baratza Preciso + Esatto
Vac Pot: Yuma
Drip: bah-humbug
Roaster: Hot Top 2K P
Posted Sat Apr 27, 2013, 9:59am
Subject: Re: prescreening your greens?
 

one of my very first roasts I had a lovely 'pea-berry' stone in with the greens...

Taught me better, although, sometimes I'm such a clod.  Now I really try to remember to toss the greens into my cooling sieve and spread them out one bean thin at least once before tipping it all through the funnel and down the chute.  This does have an advantage; I can see deformed and damaged greens far easier and make value judgments about how they might taste in the final roast if I Don't take them out first.  /wink
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Buckley
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Joined: 25 Jan 2011
Posts: 423
Location: Internet
Expertise: I love coffee

Posted Sat Apr 27, 2013, 10:46am
Subject: Re: prescreening your greens?
 

Dear Skylar,

Who supplied your stony greens?

B
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Skylar
Senior Member


Joined: 15 Apr 2004
Posts: 137
Location: New Jersey
Expertise: I love coffee

Espresso: lelit espresso
Grinder: lelit grinder
Vac Pot: B. D. Electric
Drip: chemex
Roaster: wok roast and popper, heat...
Posted Sat Apr 27, 2013, 11:27am
Subject: Re: prescreening your greens?
 

sm.  It was one of their numbered special blends. Number 23. I understand that it can happen even with one of the really outstanding suppliers. I have  almost exclusively used them for many years and never ran in to this before. Even Jove nods, apparently.

Skylar
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oldgearhead
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oldgearhead
Joined: 25 Jan 2010
Posts: 396
Location: Go Colts!
Expertise: I like coffee

Grinder: Virtuoso by Baratza
Drip: Chemex,Dilongi DCM900
Roaster: 1/2K Fluid-bed
Posted Sun Apr 28, 2013, 5:07am
Subject: Re: prescreening your greens?
 

I don't need this as a cooler anymore, I use it to inspect both green and roasted beans. Works great!
>

oldgearhead: CoffeeCooler3.jpg
(Click for larger image)
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bobpaule
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bobpaule
Joined: 31 May 2002
Posts: 167
Location: Isolation, OH
Expertise: I live coffee

Espresso: Vetrano, Venus, Enrico...
Grinder: Mazzer Mini, Rancilio Rocky...
Drip: I'd rather seize!
Roaster: Galloping G/Stir Crazy, FR8...
Posted Sun May 12, 2013, 2:15pm
Subject: Re: prescreening your greens?
 

In my 10+ years of roasting i had two UFOs:

  1. Stone.

  2. Screw from the barrier strip connectors (choc blocks) i attached to the Stir Crazy's for better agitation.

Mazzer Mini reacted differently to UFOs:

  1. Ground it, found two more stones in same batch.

  2. Jammed in burrs.
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bobpaule
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bobpaule
Joined: 31 May 2002
Posts: 167
Location: Isolation, OH
Expertise: I live coffee

Espresso: Vetrano, Venus, Enrico...
Grinder: Mazzer Mini, Rancilio Rocky...
Drip: I'd rather seize!
Roaster: Galloping G/Stir Crazy, FR8...
Posted Sun May 12, 2013, 2:16pm
Subject: Re: prescreening your greens?
 

bobpaule Said:

In my 10+ years of roasting i had two UFOs:

Stone.

Screw from the barrier strip metal connectors (choc blocks) i attached to the Stir Crazy's agitator arms.

Mazzer Mini reacted differently to UFOs:

Ground it, found two more stones in same batch.

Jammed in burrs.

Posted May 12, 2013 link

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CoffeeLoversMag
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CoffeeLoversMag
Joined: 10 Jan 2013
Posts: 218
Location: Seattle
Expertise: I love coffee

Posted Wed May 15, 2013, 5:01pm
Subject: Re: prescreening your greens?
 

If I have a lot of time, then I lay it out before roasting it.

Sometimes I get defects too...it rarely happens though. But sometimes, when you have a lot to think through, this is one of the best activities. c:

 
Did you know...? Dark roast coffees actually have less caffeine than lighter roasts due to the fact that the process of roasting burns off caffeine.
www.coffeeloversmag.com/theMagazine
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oldgearhead
Senior Member
oldgearhead
Joined: 25 Jan 2010
Posts: 396
Location: Go Colts!
Expertise: I like coffee

Grinder: Virtuoso by Baratza
Drip: Chemex,Dilongi DCM900
Roaster: 1/2K Fluid-bed
Posted Thu May 16, 2013, 6:10am
Subject: Re: prescreening your greens?
 

Three years, 50 kilos, and only one stone.
Beans from GCBC, Burmans, SM, and HRO.
The stone was probably from GCBC, that's where I get most of my beans. However, I'm not sure.
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shacke
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Joined: 6 Feb 2006
Posts: 29
Location: Philly
Expertise: I love coffee

Posted Thu May 16, 2013, 2:33pm
Subject: Re: prescreening your greens?
 

I get them in Yemen beans - but consider it proof of origin!
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