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· 06/05/2020 1:02 PM
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· 06/05/2020 1:01 PM
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· 06/02/2020 9:10 AM
keep healthy bro, love roaster form home

· 05/27/2020 10:14 AM
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· 04/02/2020 4:50 AM
Morning Ed, I haven't done any green coffee hoarding yet but am hoping the supplies don't end up like the toilet paper isles!

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rubber stopper on the chaff cutter broke
Hi, anyone have advice on replacing the rubber stopper? And also, my chaff cutter has never really worked that well anyway. I spent another ten minutes sifting through a finished batch again this morning blowing out a large amount of chaff. It catches some chaff, because I empty the collector every three batches or so, but IMO there's too much left in the beans. Is that your experience also?
Hi Tia,
you can find replacement bumpers

I'd empty the collector after/before every batch if you're having trouble with chaff collection. The easier it can breathe the better. I have noticed some varieties creating more chaff or even holding onto the chaff more than others, but the collection has always worked fine with just a 2-4 shells stuck to the grill inside the chamber after roasting. I empty the chaff collector before every roast.
my bumper finally failed after about 2 years just the other day. i still had the spare ones that shipped with the GC. Easy to replace. Not so easy to fiend the 2 halves of the rubber part in my roasted coffee. Lucky it was near the end of the roast so it didn't have to clang against the glass for long.

As for the chaff, I don't end up with too much left in the drum after a roast, but the little that is left gets taken care of (almost by accident) when I am externally cooling my roast. I do this with all roasts using a bucket with a hole in the bottom and a couple plumbing fittings so I can stick the shop vac in the bucket. I put a stainless mesh wire strainer on top. while the vac sucks cool air through the beans, I stir with a wood spoon. any chaff that is left at that point ends up in the bucket or the vac, and it works really well to cool the roast much more quickly than cooling in the GC.
John Despres
You need to empty and vacuum your chaff collector after every roast.

That's a sweeper more than it is a cutter. It's primary purpose is to keep the exit ports clear for airflow out of the roast chamber. And, yes it does chop or cut the chaff making the bits small enough to pass through the holes.

Respect the bean.
John Despres
Fresh Roast 8, Gene Cafe, JYTT 1k, Quest M3, Mazzer Mini, Technivorm, various size presses and many more brewers.
With my GC there can be a lot of chaff on the exhaust side of the drum with certain beans. I never use the Chaff collector so free airflow isn't a problem. With, for example, a Costa Rica Tarrazu there is a real big clump of chaff at the exhaust side of the drum which can't be dealt with by the sweeper. With most beans it's no problem and works fine.

The problem of all this chaff is that the heater stops at 458F even if I set it higher because it restricts the airflow in the drum. For roasting full city this is enough but still not the way it should be. When cooling using a fan the chaff is blown into the garage and works as a real good dechaffer. this only happens with one out of twnety types of beans.
Olympia Cremina 2013, HG one 83mm #0083, Gene Cafe.
Also Zassenhaus grinder, Chemex, Abid Clever Dripper, Kalita Wave, Aeropress, Hario Buono, Bodum Cafetiere and Bialetti Mokapot
John Despres
What size batches of that bean are you roasting that is plugging things up? Perhaps a slightly smaller batch will solve the problem.

Respect the bean.
John Despres
Fresh Roast 8, Gene Cafe, JYTT 1k, Quest M3, Mazzer Mini, Technivorm, various size presses and many more brewers.
Steve Egge
I almost always roast 227 grams ... and with some dry processed beans have noticed alot of chaff but never seemed to affect the roast. but as I've put temp loggers into the inflow and outflow ports I will pay attention snd see what if anything high chaff beans do to the temp ...

Santoker Rev 500, Baratza Vario-W, HG-One, Bunn Trifecta MB, AeroPress, Londinium I
thanks Mike WI. by the way Tia means thanks in advance.

hi guys OK forget about the part about emptying the collector every two or the batches. I empty it every time and there is very little in it. the chaff sweeper just pushes a pile of chaff back and forth and doesn't seem to cut it down to size. I get at least as much chaff still in the batch as the collector. is that your experience? I heard someone once adjusted the rings that held the cutter. my cutter swings about a half inch above the grate when it rotates. does that sound like yours?

wrote replacement rubber is ten dollars. do you have to replace it often? I might just go with my homemade solution...
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