The packaging of the culture media reflects the preference of many customers to opt for the addition of antibiotics and fungicides themselves. For this reason, the antibiotic and fungicide supplements are always supplied as separate aliquots, irrespective of the two supplement filling variants. The supplement mix therefore contains the growth factors, hormones, heparin or other substances in addition to the serum in accordance with the information in the respective data sheet, whereas the serum and the other supplements are aliquoted individually in the kit version.