Due to weather and other conditions, the quality of the coffee from the same exact origin may vary by crop year and thus affect pricing. Once the new crop comes in place it becomes the "Current Crop" making previous crop a "Past Crop".
What does the term “Current Crop mean?
It simply means the period of time between two coffee harvests. For many coffee origins, this approximates a calendar year but some may have two crop years each calendar year. We than call the second crop a "Fly Crop".