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Discussions > Coffee > Home Roast > Skunky Coffee  
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vondy
Senior Member


Joined: 28 Jun 2003
Posts: 17
Location: Dallas
Expertise: Intermediate

Espresso: Krups Pump for now :(
Grinder: Solis Maestro
Vac Pot: Not Yet
Drip: Kitchenaid 12 Pro
Roaster: Toastmaster Air Popper
Posted Mon Aug 19, 2013, 11:31am
Subject: Skunky Coffee
 

I've been home roasting my own beans for years now. Currently using the Gene Cafe roaster and love it. One thing I have been noticing lately is some skunky smelling coffee. When roasting or brewing. My wife has really pointed it out to me, since she does not drink coffee I think she is hit harder by the smell. A cup I drank yesterday afternoon actually tasted a bit funky.

For the last several years I have been pretty much roasting beans purchased from a small local roaster. Usually Colombian. I roast them to full city.

Question is, could this smell come from my roasting or could it possibly be from the bean source?

The strongest the smell is when I twist the lid off the mason jar I keep the roasted beans in. It almost has a "fart" smell to it. Forgive my French.
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Burner0000
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Joined: 28 Jul 2011
Posts: 1,051
Location: Cambridge, Ontario Canada
Expertise: Professional

Espresso: Rancilio Silvia, VFA Expres...
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Drip: Manual Drip, French Press
Roaster: Behmor 1600 / Sonofresco
Posted Mon Aug 19, 2013, 11:55am
Subject: Re: Skunky Coffee
 

Yucky! I don't think I have ever dealt with that smell.  Have you done a deep cleaning of your roaster?  I would bet on it being a dirty roaster, maybe dust getting into the blower on your gene.. I could see burning dust smelling like that or very old chaff build up or depending on what you are roasting it may be the bean type.  I would do a cleaning then roast something else like a Brazil or something and see if you still smell the "devils air freshener".
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CMIN
Senior Member


Joined: 14 Jun 2012
Posts: 1,356
Location: South FL
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Preciso
Posted Mon Aug 19, 2013, 2:26pm
Subject: Re: Skunky Coffee
 

That's odd, like above when was the last time you cleaned? Wonder if dust or something is getting lodge somewhere and "burning". Is this happening on the same beans? And for how long? Could be a bad batch of greens, though I've never heard of someone calling bad greens skunky lol.... that can't be a pleasant taste ;p
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vondy
Senior Member


Joined: 28 Jun 2003
Posts: 17
Location: Dallas
Expertise: Intermediate

Espresso: Krups Pump for now :(
Grinder: Solis Maestro
Vac Pot: Not Yet
Drip: Kitchenaid 12 Pro
Roaster: Toastmaster Air Popper
Posted Mon Aug 19, 2013, 2:57pm
Subject: Re: Skunky Coffee
 

You know, that could be it. Haven't scrubbed the roaster down for a while. That would explain why it doesn't always smell bad. I'll soak the roasting chamber tonight as well as the chaff collector.

Thanks for the suggestions, I'll update.
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vondy
Senior Member


Joined: 28 Jun 2003
Posts: 17
Location: Dallas
Expertise: Intermediate

Espresso: Krups Pump for now :(
Grinder: Solis Maestro
Vac Pot: Not Yet
Drip: Kitchenaid 12 Pro
Roaster: Toastmaster Air Popper
Posted Tue Aug 20, 2013, 2:03pm
Subject: Re: Skunky Coffee
 

Think that was it. Last night I soaked the Gene parts in hot soapy water and then scrubbed, rinsed and dried. No more smell, my wife is happy and my coffee taste much better. Like a whole new world. Must have been such a gradual difference that I did not really notice.

Seems strange because I have heard people say let the coffee roaster "season". Well I'll be keeping mine cleaner for now on. Not that it was caked up with nasty stuff. The glass cleaned right up.

Anyway, thanks!
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