Esterification involves the chemical reaction between a carboxylic acid and an alcohol to produce water and an ester. This study specifically examined how the structure of the alcohol—including its chain length and degree of branching—alongside the choice of catalyst and solvent, dictates the final ester yield. By reviewing the work of Romero et al. on enzymatic production in supercritical carbon dioxide (SC-CO2) and the research by Sadanandan and Raveendran on SW nanoparticle catalysts, several patterns emerged. Generally, primary alcohols featuring longer, linear chains resulted in superior yields. The choice of solvent also proved critical; while n-hexane outperformed SC-CO2, cyclohexane, and toluene for shorter or more branched alcohols, SC-CO2was equally effective when dealing with longer, straight-chain alcohols. Notably, toluene offered a slight advantage specifically when working with aromatic structures like benzyl alcohol.