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Behmor chaff & ambient temps
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Discussions > Coffee > Home Roast > Behmor chaff &...  
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jamierayo
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Posted Thu Jul 4, 2013, 3:30pm
Subject: Behmor chaff & ambient temps
 

I just started roasting with a new Behmor. My previous roaster was an iRoast2.
With the Behmor, I seem to have a lot of chaff staying with the bean, no matter how long or dark the roast. Is this typical of drum roasters?
With the air roaster, the snaps appeared more violent & the chaff was (seemingly) driven out by turbulence. I had a problem with the chaff staying in with very short roasts, but that problem was solved once I discovered how to stretch out the roast with the iRoast2.

Another question:
How sensitive is the Behmor to ambient temperature?
I discovered that the voltage (under load) is much higher in my garage, on the designated circuit right next to the panel, than it is in my kitchen. (119.6 vs 115.3). It gets pretty cool in the garage during the long winters. If I store the beans & Behmor in the house & move them in the garage immediately before roasting, how much cold can I get away with.
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JKalpin
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JKalpin
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Posted Thu Jul 4, 2013, 4:25pm
Subject: Re: Behmor chaff & ambient temps
 

I find that the larger the roast, the more the chaff.  I deal with that with a small portable vacuum cleaner, not letting it get loose in the kitchen, where I roast.  When I grind for 1 mug, there is minimal chaff stuck to the grinder container.  When I brew 1.2 litres there is obvious chaff still in the container and also in the filter basket.  But then I am grinding 65g of beans.  Nevertheless, the chaff does not make a mess and does not influence the coffee, so it is just there.

I think that  the Behmor is sensitive to ambient temperature.  I don't roast outside, so it is a non-issue with me.  I roast on the kitchen stove with the range-fan running on low and I have never set off the smoke detectors.

 
Jerry
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Prof
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Prof
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Posted Thu Jul 4, 2013, 7:22pm
Subject: Re: Behmor chaff & ambient temps
 

If you store your Behmor inside, but bring it to the garage loaded and ready to plug in and roast, the ambient temperature will not be a problem for your roasts, especially with the voltage in the garage.

 
LMWDP # 010
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Burner0000
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Posted Mon Jul 8, 2013, 6:14am
Subject: Re: Behmor chaff & ambient temps
 

Beans like Brazil have a crazy amount of chaff.  Even my Sono has issues with it.  If your experiencing a lot of chaff on the bean just give it a good shake over a garbage can before emptying the beans from the drum.  If your roasting in your garage and it's cooler say under 15'C I would just kick it on for 1 min empty to warm up.  This should bring the inside of the roaster to approx 200'F.
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jamierayo
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Espresso: Breville DB, Rancilio Silvia
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Posted Mon Jul 8, 2013, 9:51am
Subject: Re: Behmor chaff & ambient temps
 

I'm not talking about loose chaff in the drum. I am getting a lot of chaff still in the bean - still stuck in the groove.
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Burner0000
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Posted Mon Jul 8, 2013, 10:19am
Subject: Re: Behmor chaff & ambient temps
 

This usually happens with older roasts past 6 months or so.  Same thing tho giving the drum a shake helps get some off the beans.  None the less chaff doesn't effect flavor IMO if some ends up in the cup.
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jamierayo
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Joined: 24 Mar 2013
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Location: Alaska
Expertise: I love coffee

Espresso: Breville DB, Rancilio Silvia
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Drip: Aeropress, Kalita Wave
Roaster: iRoast2, Behmor
Posted Mon Jul 8, 2013, 10:49am
Subject: Re: Behmor chaff & ambient temps
 

Ok, thank you.
I haven't noticed any bad flavors either. It just annoys me a little. I like the beans to look nice :-)
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Burner0000
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Posted Mon Jul 8, 2013, 1:50pm
Subject: Re: Behmor chaff & ambient temps
 

Yeah I hear you.  This is why I still lean more towards fluid bed roasting.  More uniform roast and a kick a** job of removing chaff.  I only use my Behmor for samples now.  As long as I roast fairly new greens I never have a chaff problem regardless of roaster.
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I_bean_good
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I_bean_good
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Posted Fri Aug 16, 2013, 4:17pm
Subject: Re: Behmor chaff & ambient temps
 

jamierayo Said:

How sensitive is the Behmor to ambient temperature?

Posted July 4, 2013 link

Just a comment that my Behmor lives in the garage which can get quite chilly in the winter and I have no problem using it year-round except as noted below.

I never even bother with a preheat anymore as the type of bean seems to affect roasting times far more than starting ambient temperature.

I can report that if the garage gets to 40F then the Behmor reports "Err 01" and refuses to fire up.

 
Everything I know about coffee, I learned on coffeegeek
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