TJ-067 Gas Roaster Guidelines for Different Load Sizes - Page 12
- keno
- Posts: 1409
- Joined: 18 years ago
On a serious note, glad you were able to figure it out. The problem definitely explains the symptoms you were experiencing with the chaff, flame, and temperature. I think you are going to have a much easier and more satisfying time now with that roaster!drgary wrote:Very true. With Laron and Ken's help (LDT and keno) we determined that the flame was indeed being suffocated and chaff wasn't being pulled out of the roaster. Puzzling over it after they left I discovered that the hoses to the cyclone fan were reversed so it was blowing cool air into the roaster. No wonder I was trying to restrict it. On their very good advice I made sure there was no chaff residue in the vent pipe from the roaster or the vent tube. Doh!
- LDT
- Posts: 242
- Joined: 10 years ago
Gary, You're going to feel like you have a new roaster, but I still think it's best to do a few roasts experimenting with one variable at a time. After you see how the roaster responds, then add additional variables. I think I see more coffee being roasted at the Seeman residence, perhaps starting this evening.
-
- Posts: 825
- Joined: 13 years ago
Glad your getting it sorted out Gary, but I'm trying to sort out in my mind what happened. So the blower was blowing the wrong direction... Is that correct? Like it was blowing into the cyclone and not out of it, right?
- millcityroasters
- Posts: 253
- Joined: 10 years ago
It's hard to see, but Gray's pic in post 31 appears to show his roaster exhaust connected to the blower outlet instead of the chaff collector inlet.
He was blowing air into his roaster, not pulling it out.
He was blowing air into his roaster, not pulling it out.
- drgary (original poster)
- Team HB
- Posts: 14370
- Joined: 14 years ago
Yup!
I won't be roasting tonight, but soon, and I hope that Tom was right and I'll be able to control it like a laser. The crazy thing is with BT even nudged bass-ackwards into decent profiles the coffee's all been drinkable and better. I'm fortunate to roast in a large and well ventilated environment so the smoke wasn't overwhelming and I didn't notice it not venting directly out the wall. There's a CO detector in the room and it wasn't triggered either.
Don't try this at home! These stunts were performed on a closed track by professional drivers. Yeah, right!
I won't be roasting tonight, but soon, and I hope that Tom was right and I'll be able to control it like a laser. The crazy thing is with BT even nudged bass-ackwards into decent profiles the coffee's all been drinkable and better. I'm fortunate to roast in a large and well ventilated environment so the smoke wasn't overwhelming and I didn't notice it not venting directly out the wall. There's a CO detector in the room and it wasn't triggered either.
Don't try this at home! These stunts were performed on a closed track by professional drivers. Yeah, right!
Gary
LMWDP#308
What I WOULD do for a good cup of coffee!
LMWDP#308
What I WOULD do for a good cup of coffee!
- TomC
- Team HB
- Posts: 10550
- Joined: 13 years ago
drgary wrote:Yup!
I won't be roasting tonight, but soon, and I hope that Tom was right and I'll be able to control it like a laser. The crazy thing is with BT even nudged bass-ackwards into decent profiles the coffee's all been drinkable and better. I'm fortunate to roast in a large and well ventilated environment so the smoke wasn't overwhelming and I didn't notice it not venting directly out the wall. There's a CO detector in the room and it wasn't triggered either.
I can promise you this: it will work a lot better now.
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- millcityroasters
- Posts: 253
- Joined: 10 years ago
I made a similar mistake once with a 3 kg chaff collector. Embarrassing, but with plenty of (even reversed) airflow and clean heat it's not entirely surprising his roasts turned out okay.
- drgary (original poster)
- Team HB
- Posts: 14370
- Joined: 14 years ago
Embarrassing, yes. Did it stop me? No! I reversed those hoses and found the roaster much more controllable. ET inside the drum now also gives a useful reading. This morning I just finished roasting some 2013 Wote Konga natural greens from Green Coffee Co-op. LDT had suggested I vary one thing at a time. Well ... I'm happy to play with power and fan during a roast. Here's the Artisan chart. Weight at drop was 637.5 gm. And the chaff is where it belongs.
The weights have arrived for my scale.
Here's the roast.
And the chaff is now in the cyclone fan.
The weights have arrived for my scale.
Here's the roast.
And the chaff is now in the cyclone fan.
Gary
LMWDP#308
What I WOULD do for a good cup of coffee!
LMWDP#308
What I WOULD do for a good cup of coffee!
- keno
- Posts: 1409
- Joined: 18 years ago
Looks much better Gary!! Your dry time is more in line with what I get and your ramp and time to FC is not overly long now. But it does look like you're stalling out after FC, so try to adjust your air and heat to keep the temp gradually rising.
Has the change also solved the issues you were having with the flame bouncing around and the auto ignition coming on?
Has the change also solved the issues you were having with the flame bouncing around and the auto ignition coming on?