roasted about 2kg of Ethiopian beans this afternoon.
at 450-475f, 250g per roast takes about 11-13 min to hear cracks for medium dark roast.
it took me around 1,5 hours to finish the lot then the charcoal burned down just in time. used half a basket which is like 1.5 kg of compressed bamboo. not bad i guess.
did not use fan assistence. i think it slows things down too much..