Pomace consists of 20–26% grape seeds, 7.8–11% protein and 10–20% fatty oil depending on pressing conditions (Bockisch, 1993 and Schieber et al., 2002). A careful but fast drying of the pomace after production of wine is needed to achieve high valuable grape seed oils with characteristic smell and taste as well as poly phenolic compounds. Otherwise the quality of the resulting oil may be affected by various microorganisms disturbing balanced smell and taste (Matthaeus, 2006).