What a fabulous site. Can you tell me how altitude might affect the roasting? I roasted some Espresso beans in my Poppery II for the first time today. I was at 15 minutes and am not sure I heard a 'second crack.' I'm wondering if it takes a LOT longer because I live at 7000 feet above sea level.
I certainly will talk about this - this is why I now eschew ultra-small home roasting sessions - I truly believe that it takes at least a pound of green coffee in the roaster to fully develop its potential.