I have received answers against my questions from Aillio.
1. Why there is 3kg daily roasting limit? Is back to back roasting not allowed?
The reason we write 3KG is because we don't want to advertise the roaster as a 24/7 continuous commercial machine. It was not designed like this.
What I mean is that the drum motor, belt, and exhaust fan motor have a calculated lifespan, and might fail earlier than what we calculated.
You can of course roast as much as you like, nothing is going to overheat or fail if you roast continuously, and there are many safety features in place to help monitor the roaster.
With the Bullet you start roasting when you reach the desired drum temperature, and typically the drum temp will be higher at the end of the roast, so you will have to wait for it to come down a bit before starting your new batch. You can cool off the drum with the exhaust fan.
Another reason is you need to empty the chaff collector every 2-3 kg, so if you plan on roasting 10 kg / day its not designed to do this.
2. How do you handle smoke and chaff during roasting?
The back of the roaster contains a chaff collector with a filter.
The smoke exits the roaster from the back, and upwards, so you can place it under your kitchen smoke hood.