I did 25 back to back 1kg roasts yesterday. No issues except the erc 004 error from my 500f precharge temp. but that happened towards the end. I imagine it could be minimized with a better fan underneath. I do have an external fan blowing on the underside where the board is located. Roasting in my house at 68 degrees f.
I’ve maxed out at 4 back to backs. 1/2 the time I’ve done over 3 roasts, the bullet spits out some kind of error the next time I roast. If coffee didn’t go bad, I’d roast everything I have at once to not have to deal with the bugs so often