The Taylor-Couette disc contactor (TCDC) is a stirred liquid-liquid phase contactor which is suitable for applications in bioseparations. For liquid-liquid reactor design, information about the specific mass transfer area is inevitable. Therefore, the drop size distribution and holdup in the TCDC were investigated under various operating conditions and appropriate correlations for the prediction of these parameters have been determined. Experimental data of drop size distributions were correlated with lognormal, Gaussian, and Weibull drop size distribution functions.