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Homeroasters - Home Roasting Coffee Community » BUILDING A ROASTER » Fluidbed Roaster

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Glass Roast Chamber Questions
sahstim001	#1 Posted on 04/05/2023 11:48 PM
Newbie Posts: 25 Joined: February 20, 2023	I have two questions: 1. I see that Bake A Round's are 3.5" diameter, but does this refer to inside diameter (ID) or outside diameter (OD)? 2. Has anyone used candle holder glass similar to this https://a.co/d/cu... for a roast chamber? What are your thoughts on this?


btreichel	#2 Posted on 04/05/2023 11:58 PM
1/4 Pounder Posts: 179 Joined: May 07, 2007	Nope, I use hurricane lamp glass. The belly creates a great re-cirrc path for the beans. https://www.amazo...ref=sr_1_5 Edited by renatoa on 04/06/2023 2:37 AM


HarryDog	#3 Posted on 04/06/2023 12:58 AM
1/4 Pounder Posts: 190 Joined: July 20, 2022	Yes, Borosilicate Glass Chimney Tube. I used two different sizes for two different projects. I used a different company and the size was height (Length) and OD. I have 4 roasters and this one probably has over 100 roasts? Now my base chamber is a stainless steel cup and the glass chimney is so I can extend the chamber and see the beans. HarryDog attached the following image: Edited by HarryDog on 04/06/2023 1:08 AM


renatoa	#4 Posted on 04/06/2023 2:39 AM
Administrator Posts: 2666 Joined: September 30, 2016	Or Coleman lantern replacement glass...


allenb	#5 Posted on 04/06/2023 5:01 AM
Administrator Posts: 3725 Joined: February 23, 2010	Quote sahstim001 wrote: I have two questions: 1. I see that Bake A Round's are 3.5" diameter, but does this refer to inside diameter (ID) or outside diameter (OD)? 2. Has anyone used candle holder glass similar to this https://a.co/d/cu... for a roast chamber? What are your thoughts on this? Candle holder glass has been used successfully for roast chambers but only when it is mounted in a way where it can expand and contract without major resistance to prevent cracking. 1/2 lb and 1 lb drum, Siemens Sirocco fluidbed, presspot, chemex, cajun biggin brewer from the backwoods of Louisiana


sahstim001	#6 Posted on 04/06/2023 6:14 PM
Newbie Posts: 25 Joined: February 20, 2023	Excellent info on the candle glass, thanks everyone! Does anyone else have info on the Bake-A-Round ID vs OD question?


Piotrkurak	#7 Posted on 04/07/2023 9:05 AM
Newbie Posts: 48 Joined: March 01, 2023	While I was researching fluid bed roasters, I found a most glass tube providers either gave you interior diameters or wall thickness.

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