Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
You must login to post a message.

12/05/2023 2:44 AM
Isdel7 and Sloppy Fingers welcome to forum

12/04/2023 11:51 AM
Ross Welcome

12/04/2023 2:21 AM
coffee drink, Rknjr17

12/03/2023 9:25 PM
zihyer Welcome

12/03/2023 9:37 AM
M3Man and NHbrewer, welcome to forum

In Memory Of Ginny

Latest Donations
dmccallum - 10.00
JackH - 25.00
snwcmpr - 10.00
Anonymous - 2.00
Anonymous - 5.00
Users Online
Guests Online: 6

Members Online: 0

Total Members: 8,017
Newest Member: Isdel7

View Thread

Who is here? 1 guest(s)
 Print Thread
1lb FB hopper roaster
I think I see some issues, scorching and tipping in the middle and a bunch of under roasted beans in the top section of the picture, they can't all be Quakers.

I want to add that when I download the picture and zoom in it does not look as bad as on the site, I do think you have some much darker beans and some much lighter. Some variation will always occur.

I definitely think the bean movement needs to be improved, sorry.
This might help.

Now this is more about a drum but just think of the bean movement, more air in this case.
Edited by HarryDog on 10/30/2023 11:24 PM
Bummer.... I've got some experimentation I'm going to try before building new hopper. Thanks for feedback!
nickr, if you are thinking of using a deflector I was thinking of using a cabinet stainless steel knob but my current chamber is too small. Use some threaded rod, put a couple of nuts on it so it can be moved up or down for different loads.

Just a quick item to see if it makes enough of a difference?
What is the purpose of the bean deflector?
It's one way to have the beans directed from the spray to the edge of the chamber so they can return back to the bean mass. Hopefully creating a faster bean rotation and keep them heating as evenly as possible.

So in the FB if you increases the air flow it sprays up cooling the beans and keeping them out of the hotter bean mass, you want to keep them moving but in the hot bean mass as much as possible.

This is a video demonstrating this from progen.
Figured, just making sure I understood the concept. I just purchased these;sr=8-15
Edited by allenb on 11/02/2023 6:32 PM
Dollar store stainless steel bowls would work? Lots of sizes. Just a few taps from the inside in the bowl would give it a much rounder base.

Coffee Crafters talks about the conical hopper, some info might help if you want to make other changes.

Edited by HarryDog on 11/02/2023 3:05 PM
Tried a roast with higher airflow, 60% the whole way. This is a wet process Bali. Was able to keep within good roasting parameters, FC at 7:50, drop at 9:50 (435f). Not sure it improved much.
nickr attached the following image:

Edited by nickr on 11/16/2023 8:42 AM
If you watched the Coffee crafters video he talks about a more conical hopper to help with lofting the beans. This keeps the bean mass over the air flow. So he has a 1 7/8" inlet. The screen holes I used are 7/64 and biggest might be 1/8" if roasting smaller Peaberry beans.

If the evenness of the roast is still poor then if you have a smaller cylinder 1-1.5" smaller slide it into your roast chamber and see how the beans will loft, it should improve. The other change you can do is use a deeper funnel for your base giving you more of a conical funnel shape to your roast chamber.

I enjoyed my last order of Bali, just got some more in and will start roasting that again soon.
Jump to Forum:

Similar Threads

Thread Forum Replies Last Post
Skywalker, the ALM chinese one pound roaster Other Roasters 62 12/05/2023 6:08 PM
Advice needed for type roaster to build. WHAT SHOULD I BUY OR MAKE 4 12/04/2023 1:22 PM
My First Roaster (long ago...) Building a Coffee Roaster 3 12/01/2023 5:22 PM
Wake Up Smart Home Coffee Roaster Fluidbed Roaster (Store-Bought and Commercial) 5 11/29/2023 9:04 AM
Bellwether Roaster Drum Roaster (Store Bought and Commercial) 28 11/28/2023 2:18 PM
Homeroasters Association Logo, and all Content, Images, and Icons © 2005-2016 Homeroasters Association - Logos are the property of their respective owners.
Powered by PHP-Fusion Copyright © 2023 PHP-Fusion Inc
Released as free software without warranties under GNU Affero GPL v3
Designed with by NetriX
Hosted by skpacman