At the highest level, I would start with freshly roasted whole bean coffee (2-3 wks off roast). Most coffee at grocery stores and even at coffee shops is stale. Like 3-6 months stale. Stale coffee...
You might drink coffee every day without thinking about it. Even more complex than wine, coffee has an incredible range of tasting notes and nuances developed by: where it's farmed, how it's processed, and roasted....
