laras126 Senior Member Joined: 8 Aug 2013 Posts: 2 Location: Pittsburgh Expertise: I love coffee
Posted Thu Aug 8, 2013, 8:11am Subject: Behmor 1600 coffee is undrinkable - what am I doing wrong?
I got my Behmor 1600 several months ago and have had a handful of incredible roasts and many very bad, flat, almost undrinkable roasts. My process goes like this:
I buy beans from Sweet Maria's, usually the sampler pack Preheat the Behmor for 2 mins on 1/4 lb, P1 Add beans - an example profile is 1/2 "Guatemala Antigua Retana Yellow Bourbon" at P3 for 14:00 (C). I chose the profiles according to the guide in the manual. The roast sounds very nice: a healthy 1C which I let go until it starts to taper out, often following the Behmor's recommended Rosetta technique The beans (usually) look very nice with little chaff I let the coffee sit in a mesh colander for 2 days I brew it after ~2 days with a 24oz. Chemex, paper filters, and the appropriate grind (other roasters' coffee has been delicious with this brewing method, so I don't think that's the issue). My coffee usually has a nice bloom, but some of it (definitely Sumatra) did not hold the water at all.
I have been pretty good about doing a 1/4 lb dry run after every 5 roasts cleaning it with a Green Works cleaner. I even took off the side to check the fan, all seemed okay.
It seems like everyone loves this roaster - what am I doing wrong? It's very frustrating - every 10ish roasts I'll have a fantastic roast, and everything else is bad news.
Posted Thu Aug 8, 2013, 9:10am Subject: Re: Behmor 1600 coffee is undrinkable - what am I doing wrong?
Letting the beans sit out in the air in a mesh colander for two days is pretty much pre-staling them before brew. After they're cool, put them in an airtight container and store in a cool, dark place. if it's a very tight seal, like a canning jar, you might want to loosen the light for just a second to "burp" the escaping CO2 once a day or so. Also, drum roasts like the Behmor usually like just a little more rest, like 72-96 hours, provided they're not out in the open air.
Oxygen is the enemy of coffee flavor. I think if you change your storage method, you'll find a big improvement.
Posted Thu Aug 8, 2013, 9:24am Subject: Re: Behmor 1600 coffee is undrinkable - what am I doing wrong?
The roast sounds very nice: a healthy 1C which I let go until it starts to taper out, often following the Behmor's recommended Rosetta technique As i understand it, the Behmor does not easily lend itself to using a probe to monitor and graph the roast, but that data would help. Personally, late first is a light roast. Might try letting it go a bit longer- maybe about one minute past first, but before second.
The beans (usually) look very nice with little chaff
Photos, please. On a white piece of paper to verify good color balance.
I let the coffee sit in a mesh colander for 2 days.
WHY!? Place them in a canning jar with the lid slightly loose, stored in a cool, dark place. Tighten the lid after 24 hours. Use after 72 hours.
Henrythewound Senior Member Joined: 2 Aug 2009 Posts: 23 Location: Tucson, AZ Expertise: I love coffee
Posted Fri Aug 16, 2013, 3:36pm Subject: Re: Behmor 1600 coffee is undrinkable - what am I doing wrong?
Ha, I started roasting with a Behmor recently and had been letting the beans sit out in a pie plate for a day before putting them in jars. The last roast I let cool then pretty much transferred to the jar right away. A couple days later I unscrewed the jar next to my ear because I wanted to hear the gentle puff of CO2 come out. What I experienced instead was a very loud blast of air ssSSSPSSHHHHH!! that scared me and blew my hair back. I had heard of the possibility of strong outgassing but never experienced it before like that. Now I don't put the lid on so tight for a day or so.
While I agree that you shouldn't leave the beans out I'd be a little surprised if two days of exposure to the open air while they're degassing is the explanation. Let us know what you figure out.
I use the Sweet Maria's canisters with one way valves as well as their zip lock one way valve bags. I've also used the canisters that Seattle Coffee Gear sells with which you can evacuate all the air in the canister and I like those (though they're rather pricey so I only have two). Their website is down at the moment so I can't provide a link. The bags work but they self-destruct after ten or so uses.
Posted Sun Aug 18, 2013, 9:46am Subject: Re: Behmor 1600 coffee is undrinkable - what am I doing wrong?
I agree with Barry two days of oxygen exposure isn't ruining your beans. How long did it take to get the beans to first crack? I've roasted with a Behmor and my first guess would be that you are baking the beans. With the Guatemalan you mentioned I would suggest P1 not P3. Also you didn't mention the amount of beans you are roasting. Although the Behmor is advertised as a one pound roaster I had better luck with 8oz roast and occasionally 12oz roast. Next thing I would be interested to know is your cooling routine. Do you let the beans cool in the Behmor until it times out? If so consider cooling externally or using a fan to facilitate faster cooling in the roaster.
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