View attachment 607727 Here’s an idea I just drew up for a DIY coffee roaster.
I found a cheap dryer heating element on amazon for $19.
It’s 5200 Watts 240 volts, Similar to my electric brew rig heating element. My thought is that I could make some sort of box to put it in and wire it up to my brew controller with the temp probe in the box to read the air temp. A thin metal shield over the element would protect from direct heating and scorching. Then have a drum in the box with a spit or axel of sorts coming out one end with a pulley system attached to turn the drum. Maybe attach a hair dryer at one point for air flow but idk. Here is a bad sketch.