I was roasting this morning, Colombia Tolima Einar Ortiz Microlot, and I noticed a hint of lemon aroma, in the 1st 2 mins of roasting. When the coffee is actually drying, not cooking. Lemon blosson was one of the flavors in SM's description of the coffee.
I have had similar experience with Klatche's Colombia Gutierrez Micro-lot, but with maple aroma and maple flavor in the coffee.
Anybody else notice this phenomina? I use the Fresh roast, maybe it is only happen in air roasting?
Anyways, pretty cool

Ah, the joys of home roasting