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Sourcing Materials
Where do you normally go to get the cylindrical glass for the roasting chamber?
I've looked all over and couldn't find a good fit . Sight glasses seem expensive and normal glass wear isn't rated for such high heat.

Also, is it easy to get 350g roasters to run off of a normal 120V 18A outlet? The wattage of the heating element seems to leave little room for the air pump, etc.
I bought a 4 inch diameter by 12 inch long Roasting Chamber here:


You may find it cheaper and or with better shipping than the current price.
Edited by renatoa on 02/02/2022 12:58 PM
Thanks for the link, sight glasses look great but are expensive. I'm hoping to find a cylinder of glass by itself which is heat resistant - hoping that will lower the price.
French press 1l spare glass.
9 cm diameter, but not enough volume for 350g.
Pyrex Bake-a-Round ThumbsUp Accessible and affordable!

I've been using them for years and they work great for FB roasters. I currently roast 800g in mine (240v 30a @ 55-65% power source however)

Here's another choice:

Clever Coffee Dripper
Grinder: Macap M4
Roaster: Completed drum roaster project photos shown here:
Videos https://www.youtu...Bd1NrdpSUH
I used standard glass on my large air roaster. I cut the base off a heavy glass cylindrical flower vase. All good so far during it's 40ish roasts to date.
Thanks, this is all really helpful. It's good to know that there are several legitimate & low-cost options out there.
I just bought a bake-a-round ThumbsUp
I ordered a 4 tri clamp sight glass from AliExpress but the glass broke and Im looking to replace it. Does this seem like it would suffice as a replacement? https://m.aliexpr...f7f905367a

The option I am looking at is 120mm for OD but the original item is 119mm for the OD so Im not sure if 120mm is an estimate and Would fit 4 tri clamps or if I should get 115mm OD. Does leaving a little room with the 115mm on the sides of the clamps make any difference?
Edited by hstan4 on 06/23/2022 11:29 PM
And that's why I gave up the glass cylinder approach and since my modified oven was already doing 600 gram batches, I decided to up the game to an Artisan 3E wannabe in terms of power and batch size but driven by a regenerative blower. Results were fantastic and so I upgraded certain parts and now I'm doing 3kg batches.
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