Coffee wax can not only be used as natural antioxidant in food products (Lehmann et al., 1968), but also as a source of serotonin using special liquid chromatography separation techniques (Kele and Ohmacht, 1996). As high contents are found only in wild species, interspecies hybrids with cultivated species should be developed to obtain coffee plants with high wax content and provide the pharmaceutical industry with a source of high-quality raw material.