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Royal Max Roastmaster 9001 (1kg roaster)?
Theo84
So I have in my possession what I think is a Roastmaster 9001 from about 2001 or so, an infrared drum roaster with the heating elements in the drum. It's been sitting unused for quite some time. Filthy but seems to be in pretty good working order. There seems to be no way to get the manual. It seems to run on 13 minute cycles divided into a Warm and Roast settings. There are several parameters one can enter for each cycle. T for temperature. But also H1(options 1-3) , D1, and H2, H3, H4 (options 1-3). See attached photos.

Does anyone know what these settings mean?
Also, should I charge the beans at the beginning of the warm cycle or only after it has reached set warm temperature (seems to be about 195F on most of the selections)?

I roasted a couple batches. From charging to 2nd crack was about 9-10 minutes. Both batches came out quite a bit past what I usually prefer. Close to Starbucks dark roast. There seemed not to be much time between 1st and 2nd crack. Any tips on how to extend this period using the settings? I suppose I could perhaps install an exhaust fan to better control the temp.

Thanks in advance for the help. Much appreciated.
Edited by Theo84 on 07/26/2021 8:52 AM
Theo84
I couldn’t get photos to load here, so here’s a link to the same post and replies on home-barista.com:

https://www.home-...ml#p809913
Theo84 attached the following images:
image1_2.jpg image2_1.jpg

Edited by renatoa on 07/29/2021 1:56 AM
renatoa
Seems the 4 lamps are fixed into the oven body...
Then, what is rotating, to move the beans ?
Theo84
I too was a bit surprised when I saw the design. I figured the elements would heat the drum. But the vanes are on the bottom attached to the bases of the cylinder. They go 180* in one direction and then reverse. Back and forth. It mixes quite well and allows the beans to be exposed directly to the IR heat. I suppose another way to do it would be with the elements along the axis in the middle. Is that what yours does?
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