The primary objective of this research study was to characterize the phenolic compounds and the antioxidant activity of dehydrated coffee (Coffea arabica L.) pulp by two drying methods (hot air and lyophilization). Coffee pulp samples were obtained from three farms in the Amazonas region (Peru). They were treated in a process that included washing, air drying, dehydration, grinding, and extraction using ultra-pure water and four organic solvents: 50% ethanol, 95% ethanol, 50% methanol, and 95% methanol. The results showed that the extracts obtained by lyophilization and 95% ethanol solvent had the most extraction capacity, phenolic compounds, and antioxidant capacity, with 66.3% and 402.6 mg of Gallic acid equivalents/100 g dehydrated pulp, respectively. It is concluded that 95% ethanol is the best solvent for the extraction of phenolic compounds in dehydrated coffee pulp by lyophilization. [ABSTRACT FROM AUTHOR]