Rendering old comb in kitchen steamer

I used the old kitchen steamer today to render down this lot of old comb. Not much but it was just to try it out. It worked really well. I put the tray in the bottom compartment, fitted the second compartment over it and laid some netting in the second tray. I squeezed together lumps of the comb and filled the container, folded over the net, put the lid on and switched on. 10 minutes later I had a couple of ounces of rendered beeswax which I poured into a tray to set. The net I used was too coarse and it let through some bits of detritus so I will render this wax again with the next batch through a finer mesh.