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Homeroasters - Home Roasting Coffee Community » BUILDING A ROASTER » Turbo Oven Roasters

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DRUMTC Roaster
DRUMTC	#1 Posted on 04/25/2023 11:23 PM
Newbie Posts: 10 Joined: April 22, 2023	Hi I was not able to keep up with my SCTO family demand was over 900g/week and remains strong. I basically stooped roasting in 2015 since I could not keep up. I recently converted it to a DRUMTC and it works well I have roasted upto 600g. https://youtu.be/... Look forward to this group and figuring out how to get a probe in the bean bed!


renatoa	#2 Posted on 04/26/2023 3:16 AM
Administrator Posts: 2591 Joined: September 30, 2016	So, what was primarily you issue with former SCTO setup(s), not able to stir enough greens ?


DRUMTC	#3 Posted on 04/26/2023 7:14 PM
Newbie Posts: 10 Joined: April 22, 2023	Yes essentially had I found Bob's work I would have just added a more grunty motor to the SCTC that said I have the option still! https://www.bobbo... https://www.bobbo...-build.htm Edited by renatoa on 04/27/2023 1:28 AM


renatoa	#4 Posted on 04/27/2023 1:34 AM
Administrator Posts: 2591 Joined: September 30, 2016	Stir crazy base has it limitation, not allowing the best air circulation. Using a perforated pan, things can be improved significantly, allowing 500 grams without issues, like in the example below:


Koffee Kosmo	#5 Posted on 05/05/2023 4:59 PM
Administrator Posts: 1618 Joined: December 31, 2008	Quote DRUMTC wrote: Hi I was not able to keep up with my SCTO family demand was over 900g/week and remains strong. I basically stooped roasting in 2015 since I could not keep up. I recently converted it to a DRUMTC and it works well I have roasted upto 600g. https://youtu.be/... Look forward to this group and figuring out how to get a probe in the bean bed! The volume of your roaster is to large With modifications to the TO element baffle plate and reducing the volume to below 9 lt it can potentially roast 1kg My agitation style setup is roasting 1kg every week and my friends drum roaster that we built roasts 1 kg as well We used a car window winder motor for spinning the drum and we used the same pot set as the agitator type roaster KK I home roast and I like it. Designer of the KKTO Roaster Build information https://homeroast...ad_id=1142 https://docs.goog...lide=id.i0 Blog - http://koffeekosm...gspot.com/ Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex, (KKTO) Turbo Oven Home Roaster.
	Web

DRUMTC	#6 Posted on 05/11/2023 9:04 PM
Newbie Posts: 10 Joined: April 22, 2023	Quote Koffee Kosmo wrote: Quote DRUMTC wrote: Hi I was not able to keep up with my SCTO family demand was over 900g/week and remains strong. I basically stooped roasting in 2015 since I could not keep up. I recently converted it to a DRUMTC and it works well I have roasted upto 600g. https://youtu.be/... Look forward to this group and figuring out how to get a probe in the bean bed! The volume of your roaster is to large With modifications to the TO element baffle plate and reducing the volume to below 9 lt it can potentially roast 1kg My agitation style setup is roasting 1kg every week and my friends drum roaster that we built roasts 1 kg as well We used a car window winder motor for spinning the drum and we used the same pot set as the agitator type roaster KK As in the roast chamber is too large? Ah I see baffle some of the excess volume I believe it is 12l now target to knock 3-4 off as an improvement! I did notice my double wall had a much smaller volume and was insulated but it was hard to see the beans... Perhaps I can fabricated a filler. [url] [img]https://www.youtube.com/watch?v=SMGXP-Ys_IQ[/img][/url] Edited by DRUMTC on 05/11/2023 9:16 PM


DRUMTC	#7 Posted on 05/11/2023 9:12 PM
Newbie Posts: 10 Joined: April 22, 2023	Quote renatoa wrote: Stir crazy base has it limitation, not allowing the best air circulation. Using a perforated pan, things can be improved significantly, allowing 500 grams without issues, like in the example below: Oh that is neat I have done 560g in the Drum which is the natural limit for city roast! I like your approach as it would be easier to put a TC in the bean bed! Matt


Koffee Kosmo	#8 Posted on 05/11/2023 10:15 PM
Administrator Posts: 1618 Joined: December 31, 2008	Quote DRUMTC wrote: Quote Koffee Kosmo wrote: Quote DRUMTC wrote: Hi I was not able to keep up with my SCTO family demand was over 900g/week and remains strong. I basically stooped roasting in 2015 since I could not keep up. I recently converted it to a DRUMTC and it works well I have roasted upto 600g. https://youtu.be/... Look forward to this group and figuring out how to get a probe in the bean bed! The volume of your roaster is to large With modifications to the TO element baffle plate and reducing the volume to below 9 lt it can potentially roast 1kg My agitation style setup is roasting 1kg every week and my friends drum roaster that we built roasts 1 kg as well We used a car window winder motor for spinning the drum and we used the same pot set as the agitator type roaster KK As in the roast chamber is too large? Ah I see baffle some of the excess volume I believe it is 12l now target to knock 3-4 off as an improvement! I did notice my double wall had a much smaller volume and was insulated but it was hard to see the beans... Perhaps I can fabricated a filler. [url] [img]https://www.youtube.com/watch?v=SMGXP-Ys_IQ[/img][/url] Yes the total volume of the roast chamber including the dome of the TO Find the volume reduction amount and mark the glass with a line Best and easiest way to reduce volume is to use a stainless steel camping plate that fits inside the glass that sits on top of a bed of insulation Also check the the size of a quiche baking pan for fit as the bottom is removable https://xoroda.co...7414-3.jpg KK Edited by renatoa on 05/12/2023 1:17 AM I home roast and I like it. Designer of the KKTO Roaster Build information https://homeroast...ad_id=1142 https://docs.goog...lide=id.i0 Blog - http://koffeekosm...gspot.com/ Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex, (KKTO) Turbo Oven Home Roaster.
	Web

renatoa	#9 Posted on 05/12/2023 1:48 AM
Administrator Posts: 2591 Joined: September 30, 2016	Quote DRUMTC wrote: Oh that is neat I have done 560g in the Drum which is the natural limit for city roast! I like your approach as it would be easier to put a TC in the bean bed! Matt And allows chaff evacuation too. And faster charge/drop, better air circulation. The roaster machine is built using as the outer wall the extension ring that could came as an accessory with your turbo oven. This way solved the perfect tightness on top joint with the lid, without any custom gasket. And for the bottom used a pizza tray of the same size, i.e. 32cm


DRUMTC	#10 Posted on 05/13/2023 6:40 AM
Newbie Posts: 10 Joined: April 22, 2023	Matt[/quote] And allows chaff evacuation too. And faster charge/drop, better air circulation. The roaster machine is built using as the outer wall the extension ring that could came as an accessory with your turbo oven. This way solved the perfect tightness on top joint with the lid, without any custom gasket. And for the bottom used a pizza tray of the same size, i.e. 32cm[/quote] Unfortunate mine did not come with a ring :-( can you advise more detailed pictures also a probe placement and mixer detail. Bob successfully roasts 18 ounce batches but does not have the air circulating below the beans! [img]https://www.bobbooks.net/turbo-build.htm [/img] I have been using his roasting philosophy with good results [img]https://www.bobbooks.net/[/img]


DRUMTC	#11 Posted on 05/13/2023 6:44 AM
Newbie Posts: 10 Joined: April 22, 2023	Quote renatoa wrote: Quote DRUMTC wrote: Oh that is neat I have done 560g in the Drum which is the natural limit for city roast! I like your approach as it would be easier to put a TC in the bean bed! Matt And allows chaff evacuation too. And faster charge/drop, better air circulation. The roaster machine is built using as the outer wall the extension ring that could came as an accessory with your turbo oven. This way solved the perfect tightness on top joint with the lid, without any custom gasket. And for the bottom used a pizza tray of the same size, i.e. 32cm Ah looks like a KKROASTER [url]https://docs.goog...ide=id.i26[/url]


renatoa	#12 Posted on 05/13/2023 9:17 AM
Administrator Posts: 2591 Joined: September 30, 2016	Close, as in using a TO as heat source. Different roast chamber layout and airflow.

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