A third wave coffee shop owner mentioned to me once about using beans beyond that two week period. That after sometime they come back around to be enjoyable ag

A third wave coffee shop owner mentioned to me once about using beans beyond that two week period. That after sometime they come back around to be enjoyable again. IIRC he was only referring to espresso. I haven't been able to find much info about it, and I don't make espresso at home, but it might be something worth exploration.