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JackH
OfflineAdmin
· 05/27/2020 3:01 PM
Does it happen with all threads or certain one?

pisanoal
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· 05/27/2020 10:14 AM
Anyone else have issues seeing the whole window of a thread when accessing from a mobile phone? Any fixes?

allenb
OfflineAdmin
· 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!

snwcmpr
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· 03/31/2020 2:53 PM
Hey Ed. Thanks. roar

homeroaster
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· 03/31/2020 11:21 AM
Hey quarantined home roasters! I hope you have great coffee! If they have a run on coffee, I hope you're set with your great home roast! Find me on Facebook! Ed Needham

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Real Hillbilly Fluid Bed Roaster
ahardinger
So, I wanted to share my DIY hot air roaster with you all. It's really rough around the edges but was also dirt cheap to build. I don't plan on it lasting for very long but it's fun to use and does the job!

Starting from the bottom and working up. First is a 120V mattress inflator from Walmart which has an interchangeable nozzle system. One of the nozzles fits very well into the heater tube which is on top of that. It is the element from a 1500 watt harbor freight heat gun. The red goo is high temperature silicone which I used to seal up a few holes as well as to secure some of the thermocouple wires.

On top of the heat gun, to keep beans out of the elements, is a square of aluminum screen, like for screen doors, which is sandwiched between the end of the heater and a hand made sheet metal funnel. The hose clamp keeps everything tight and secure.

Next comes an empty can of peaches serving as my roast chamber. High temperature aluminum flue tape seals it to the funnel. I have an extension for the roast chamber as well in case I want to roast 200 grams of beans instead of my normal 150g.

The board to the left of the column is my custom made roast controller. Mostly, I wanted to design this because that's what I like to do. But I also wanted something that was more tightly integrated and cleaner from a wiring and physical installation perspective. I'm going to post a new thread over in the DATA LOGGERS - CONTROLLERS... forum to talk about it in detail.

-Aaron
ahardinger attached the following images:
controller.jpg full_view_1.jpg roast_chamber_interface_1.jpg

Edited by ahardinger on 03/04/2018 4:58 AM
 
DaveInWoodland
I guess I have a question. My past experience has been very negative when using anything aluminum in roasting. The metal flavor of the aluminum was always a problem.
 
ahardinger

Quote

DaveInWoodland wrote:

I guess I have a question. My past experience has been very negative when using anything aluminum in roasting. The metal flavor of the aluminum was always a problem.


Not that I've noticed, comparing against using a popcorn popper. Then again, I don't think there is much aluminum touching the beans other than the screen?
 
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