"It's decaf. Just terrible. A memory of real coffee." reflects a strong disappointment with decaffeinated coffee, emphasizing how it falls short of the genuine experience of drinking real coffee. The speaker clearly values the rich flavor and aroma that only caffeinated coffee provides, and feels let down by decaf options.

This quote is from the book Four Blind Mice by James Patterson. It highlights a character's preference for authentic coffee, suggesting that decaf can't compare to the real thing, which may symbolize broader themes of craving authenticity or authenticity's importance in daily pleasures.