Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.

Shoutbox

You must login to post a message.

renatoa

04/18/2024 12:36 AM

greyberry2, N C,

renatoa

04/17/2024 9:27 AM

, branchu

renatoa

04/14/2024 5:56 AM

TheOtherJim and papajim,

allenb

04/11/2024 6:33 PM

Zemona

renatoa

04/11/2024 9:19 AM

Mrbones and sgupta,

Shoutbox Archive

Forum Threads

Newest Threads

Rainfrog's Roastmast...
War on Farmers by Su...
Kaleido Roaster PID ...
Green coffee sellers
Wet beans - Estimati...

Hottest Threads

Skywalker roaster...	[292]
Skywalker, the AL...	[214]
Skywalker Roasts	[94]
Rainfrog's Roastm...	[53]
My first popcorn ...	[47]

In Memory Of Ginny

Donations

Latest Donations
dmccallum - 10.00
JackH - 25.00
snwcmpr - 10.00
Anonymous - 2.00
Anonymous - 5.00

Users Online

Guests Online: 2

Members Online: 0

Total Members: 8,210
Newest Member: N C

Oh no! Where's the JavaScript?
Your Web browser does not have JavaScript enabled or does not support JavaScript. Please enable JavaScript on your Web browser to properly view this Web site,
or upgrade to a Web browser that does support JavaScript; Firefox, Safari, Opera, Chrome or a version of Internet Explorer newer then version 6.

View Thread

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

Who is here? 1 guest(s)

Ceramic clay as perforated plate
tamarian	#1 Posted on 05/07/2012 3:32 PM
1/2 Pounder Posts: 320 Joined: January 21, 2012	Hello everyone, been lurking here for a couple of months and learning from all the DIY roasters. I'm working on a new 1kg fluid-bed roaster as my heatgun/egg beater 1lb roaster is no longer enough. After reading about bubble beds, I started prototyping perforated plates with ceramic clay, as it is extremely easy to perforate/re-perforate. Are there any disadvantages in taste or any health concerns if they are used in actual roasting?
	Web

allenb	#2 Posted on 05/07/2012 4:22 PM
Administrator Posts: 3858 Joined: February 23, 2010	Quote tamarian wrote: Hello everyone, been lurking here for a couple of months and learning from all the DIY roasters. I'm working on a new 1kg fluid-bed roaster as my heatgun/egg beater 1lb roaster is no longer enough. After reading about bubble beds, I started prototyping perforated plates with ceramic clay, as it is extremely easy to perforate/re-perforate. Are there any disadvantages in taste or any health concerns if they are used in actual roasting? I can't think of any relating to taste or health assuming the clay mixture doesn't contain anything more than you'd use in a typical clay oven or clay cooking vessels. Are you able to drill it after it's fired? Allen 1/2 lb and 1 lb drum, Siemens Sirocco fluidbed, presspot, chemex, cajun biggin brewer from the backwoods of Louisiana


tamarian	#3 Posted on 05/07/2012 4:43 PM
1/2 Pounder Posts: 320 Joined: January 21, 2012	No drilling required, I just puncture it with a 4mm needle while soft. I'm using air drying modelling clay like this one: http://www.amazon.com/...d_sbs_op_6 Edited by allenb on 05/07/2012 5:01 PM
	Web

atalanta	#4 Posted on 05/07/2012 7:00 PM
1/4 Pounder Posts: 89 Joined: April 27, 2012	From discussions I've read on a hookah forum I belong to, they suggest if you're going to make a bowl (which is where the tobacco sits), you should use a clay that is fired and use a food-safe glaze (glazed because hookah tobacco is goopy and will just make an awful mess of an unglazed bowl). For this, you could get away with non-glazed and any oils from the beans would just "season" it. But I'd still stick with something that is cured at a temperature hotter than what it will be exposed to. I don't think this stuff is true terra cotta, that would need to be fired by some means. If you had it already, you could expose some of it to high temperature and see what happens. The binding agents in this might be flamable, so be careful.


tamarian	#5 Posted on 05/08/2012 2:50 AM
1/2 Pounder Posts: 320 Joined: January 21, 2012	Quote atalanta wrote: If you had it already, you could expose some of it to high temperature and see what happens. The binding agents in this might be flamable, so be careful. I just tested it by pointing my heat gun at an air dried peace, full blast (650 C) for half an hour from a distance of about 1 inch. No changes to colour, no smell other it's clay smell.
	Web

Jump to Forum:

Similar Threads

Thread	Forum	Replies	Last Post
Possibly the best alternative to a perforated plate for bean retaining	Fluidbed Roaster	4	12/22/2023 6:47 PM
5 Lb Roaster Perf Plate Design Help!	Fluidbed Roaster	70	02/14/2020 9:50 AM
Hybrid Build w/ Ceramic Band Heater	Fluidbed Roaster	11	12/29/2019 6:50 PM
ceramic infrared element	Building a Coffee Roaster	3	11/06/2018 5:58 PM
Perf plate question	Fluidbed Roaster	11	06/09/2018 5:24 AM