I experimented with the very end of the roast, the last minute after the first crack. I was curious how quick changes up or down would affect the final flavor. I don’t think it would be news to anyone to say the end of the roast has a big impact on flavor; I wanted to quantify and taste for myself. https://medium.com/@rmckeon/swinging-the-coffee-roast-at-the-end-81522b1a4c34