This study aimed to investigate the effect of adding gambir catechin extract on the characteristics of instant honey fermented Robusta coffee (Coffea canephora). The research employed a non-factorial Completely Randomized Design (CRD) consisting of 7 treatments: F0 (100% instant coffee + 0% gambir), F1 (97.5% instant coffee + 2.5% gambir), F2 (95% instant coffee + 5% gambir), F3 (92.5% instant …