No more flying beans. Crafted a bean deflector from some wood I had lying around. Did some cardboard prototyping, and settled for a form that would deflect beans both left and right, and would not be in the way, when I have to put my hand in the roasting chamber, to clean the IR glass.
Then I cut the wood, glued for stability, tried it on for size and looks, and then painted it black. Really easy, only took an hour or so. You could probably get away with cardboard and duct tape and be on your way in 10 minutes
Now for a few more layers of black to make it perfect