1. Devolli, A., Kodra, M., Shahinasi, E., Feta, D., Dara, F.: Hygienic control in beer bottling and dispensing system. J. Hygienic Eng. Des. 15, 5–11 (2016)
2. Storgårds, E.: Process hygiene control in beer production and dispensing. Dissertation, Faculty of Agriculture and Forestry of the University of Helsinki (2000)
3. Association, B.: Draught Beer Quality Manual/Prepared by the Technical Committee of the Brewers Association, 4th edn. Brewers Publications, Boulder, Colorado, USA (2019)
4. Ingledew, W.M.: Effect of bacterial contamination on beer. A review. J. Am. Soc. Brew. Chem. 37, 145–150 (1979)
5. Haikara, A.: Beer spoilage organisms. Occurrence and detection with particular reference to a new genus Pectinatus. Technical Research Centre of Finland, Publications (1984)