A lot of coffee nerds like to think they have a good palate. Populace Coffee wants to put them to the test. The Bay City-based roaster is teaming up with Mahlkönig and La Marzocco for a contest they’re dubbing the “Flight of Fancy.” And they are giving a Mahlkönig EK43 to the winner.

The contest is simple enough. First you purchase the “Flight of Fancy“- four unmarked half pound bags of coffee. The unmarked bags come with postcards describing eight different coffees, four of which are in the unmarked bags. Correctly identifying the four coffees and giving the sponsors a social media shout out could net you the hottest piece of hardware in specialty coffee. Think your tastes buds are up to the challenge? Act fast. The flights are only available for purchase until October 12.