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MBAA TQ http://dx.doi.org/10.1094/TQ-53-4-1118-01  |  VIEW ARTICLE
Basic Guide to Line Cleaning and Maintenance in Draught Beer Systems

Keith Lemcke. Siebel Institute of Technology, Chicago, IL, U.S.A.

Abstract
Draught beer line cleaning is a critical factor in the service of excellent draught beer. Cleaning your system frequently ensures beer quality but increases the cost of service due to beer lost when preparing the lines for cleaning. Throughout the industry, there is debate over the "best practices" in draught cleaning, including what defines a "clean" draught system. With the ever-increasing selection of draught beers, it is imperative not only to the brewer but all the way to the consumer that the beer provided as draught is representative of the beer provided by the brewer. The challenges of clean beer lines have never been more evident than today. Many of the draught beers on the market come with active yeast cultures, wild yeast cultures, and bacteria, all part of the flavor mix. These organisms can contaminate draught lines for the next beer to be tapped on those lines. Additionally, the intrusion of contaminant microorganisms from various sources and breweries needs to be eliminated and controlled within draught systems to ensure that the beer poured is exactly as intended.