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Discussions > Coffee > Home Roast > Coffee weight...  
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maximemeunier
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Joined: 25 Feb 2010
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Posted Wed Oct 6, 2010, 9:07pm
Subject: Coffee weight before and after roasting
 

Hi everyone!

I'd like to know if I'm the only one to get half of the weigh of my coffee after the roasting?

Exemple: To day I've received my behmor roaster and I roasted 113g (1/4 lb) of green coffee. After the roast, my coffee weights 60g .... approx one half of the original weight. I bought my coffee green beans from green beanries.

Is it normal? If it's normal, the green coffee worth more then roasted coffee! I don't understand .... Maybe I'm wrong with my calculs?



thanks !


Max
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IMAWriter
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IMAWriter
Joined: 4 Jul 2002
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Location: Brentwood, TN
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Espresso: Bezzera Strega
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Roaster: Behmor 1600+, CO/UFO combo
Posted Wed Oct 6, 2010, 9:22pm
Subject: Re: Coffee weight before and after roasting
 

I regularly weigh my beans post roast. My average weight loss is 17%.
I suggest you try 12oz at the 1#/P1 or P2/B setting.
First carefully weigh out 12oz (339-340 g) of green.
Roast to your preference...REMEMBER....the darker you roast, the more moisture loss there will be!

If you're roasting well into 2nd crack where beans are showing oil, you will find a more significant loss of moisture. But NEVER should it be 50%.
Check your figures again.

 
Rob J (LMWDP #187)
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CoffeeRoastersClub
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Posted Wed Oct 6, 2010, 9:25pm
Subject: Re: Coffee weight before and after roasting
 

maximemeunier Said:

Hi everyone!

I'd like to know if I'm the only one to get half of the weigh of my coffee after the roasting?

Exemple: To day I've received my behmor roaster and I roasted 113g (1/4 lb) of green coffee. After the roast, my coffee weights 60g .... approx one half of the original weight. I bought my coffee green beans from green beanries.

Is it normal? If it's normal, the green coffee worth more then roasted coffee! I don't understand .... Maybe I'm wrong with my calculs?



thanks !


Max

Posted October 6, 2010 link

If I want to get 1 lb. beans city roast I roast 1 1/4 pounds green.  The darker I roast the more beans I add to get a pound roasted.

Len

 
"Coffee leads men to trifle away their time, scald their chops, and spend their money, all for a little base, black, thick, nasty, bitter, stinking nauseous puddle water." ~The Women's Petition Against Coffee, 1674

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BoldJava
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Posted Thu Oct 7, 2010, 3:13am
Subject: Re: Coffee weight before and after roasting
 

maximemeunier Said:

Hi everyone!

I'd like to know if I'm the only one to get half of the weigh of my coffee after the roasting?


Max

Posted October 6, 2010 link

I roast 2.4 lbs greens to yield 2.0 + roasted on the RK drum, to full city roast, just short of a second crack.  A 15-20 percent loss is quite standard, bean dependent.

BJava

 
"On the trail for the goats' grail..."

Dave Borton
St Paul, MN
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oldgearhead
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oldgearhead
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Posted Thu Oct 7, 2010, 7:02am
Subject: Re: Coffee weight before and after roasting
 

I roast 240 grams, every 3 days,  to a final bean mass temperature of 405df (FC). My shrinkage for most beans is 17-20%..Yesterday's batch of JBM peaberry was 200.5 grams, or almost 20%. Kind of costly..

oldgearhead: Roaster_Station01.jpg
(Click for larger image)
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Frost
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Posted Thu Oct 7, 2010, 2:03pm
Subject: Re: Coffee weight before and after roasting
 

http://www.sivetzcoffee.com/images/roastdegree1.jpg


My percent weight loss agrees with this chart most always within 1%. Generally 15-16%. I no longer check it for every roast.
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maximemeunier
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Joined: 25 Feb 2010
Posts: 16
Location: Saint-Hyacinthe
Expertise: I live coffee

Espresso: La Pavoni Professional
Grinder: Peugeot
Vac Pot: Bodum 4cups
Drip: Aeropress
Roaster: Behmor 1600
Posted Thu Oct 7, 2010, 2:27pm
Subject: Re: Coffee weight before and after roasting
 

Well ... I'm happy to read you all!

I thing I had made something wrong.

I bought the Choco Espresso brand from green beanries ... and In my Behmor 1600 I selected the P4 profile with the D program. I also push the " - " button once like it's said in the user manuel for a 1/4 lb. ...

At the end of the complete cycle my beans were not enought roasted. I mean, they were very light brown .. and some were still greenish ... None of them were black or dark....

Is anyone had ever tried this kind of profile?
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randytsuch
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Posted Thu Oct 7, 2010, 3:29pm
Subject: Re: Coffee weight before and after roasting
 

I don't have a Behmor, but that are lots of people here that do.

I think it is common to "trick" the Behmor, and to roast less then you tell the Behmor you have.  
I think that gets a darker roast.

You should be able to find lots of threads about roasting with a Behmor here.

And as others have said, 50% is way high, sounds like you lost some of your beans, or made a measuring mistake.

Randy
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maximemeunier
Senior Member


Joined: 25 Feb 2010
Posts: 16
Location: Saint-Hyacinthe
Expertise: I live coffee

Espresso: La Pavoni Professional
Grinder: Peugeot
Vac Pot: Bodum 4cups
Drip: Aeropress
Roaster: Behmor 1600
Posted Thu Oct 7, 2010, 3:31pm
Subject: Re: Coffee weight before and after roasting
 

Maybe ... Anyway, it was my first roast ever!

I'll try an other roast in the next days

And i'll keep you updated!
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IMAWriter
Senior Member
IMAWriter
Joined: 4 Jul 2002
Posts: 5,959
Location: Brentwood, TN
Expertise: I live coffee

Espresso: Bezzera Strega
Grinder: Forte, OE Pharos,...
Vac Pot: Adcraft SS, Yama 8 cup
Drip: Brazen, Kalita, Chemex,...
Roaster: Behmor 1600+, CO/UFO combo
Posted Thu Oct 7, 2010, 3:45pm
Subject: Re: Coffee weight before and after roasting
 

I would suggest you do as I suggested...earlier. LOL

Weigh 12oz (339g). Roast at P1 or P2/1#/B

BTW, have you checked your preferred outlet for voltage?

Many here have a Kil-o-wat device (around $20-29 US) that delivers info on whats coming out of your wall. Plugging in the behmor into that will show you how the roaster is cycling, etc.

Ideally, at least 120v out of the outlet is best. If you're showing say, 116 at the start of the roast, you'll be baking your beans for sure.

 
Rob J (LMWDP #187)
My Music Production web site:
www.robertjason.com
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