This reminds me of a roasting method I first read about on Blue Bottle's website called "melange." It is roasting the same green bean to different levels and then combining the various roasts to get all the flavors. I have thought about doing this at home, the simplest form would be to roast 1/2 lb to City+ and 1/2 lb to Full City. More time consuming would be 1/4 lb roasts to City, City+, Full City and Full City+.
2/3/15 at 6:34pm