Presenter: Roland Folz, Versuchs- und Lehranstalt für Brauerei
in Berlin (VLB), Berlin, Germany
Long-term studies to investigate the performance and effectiveness
of foam cleaning and disinfection in brewing and
packaging operations by VLB together with the industry has led
to a further control point definition to create a microbiological
firewall on-line in the process. Trials performed in pilot scale
as well as in industrial applications led to two developments
to better classify, control, and document results during foam
application. CIP and COP procedures are compared, especially
in the crucial process of outer filler cleaning. Foam classes
are defined that build the background for an apparative set-up,
which releases an optical signal to classify the foam based on
cluster analysis before being applied. Further developments
alternate the foam chemistry itself to combine the goal of
cleaning directly with an indicator that visually validates the
effect regarding organic residues based on a permanganate reaction
by a color change. During these developments, existing
retention test media were compared and led to a new standard
staining method in order to describe the sensitivity of the methods.
Through the synergy of the new validation developments
the author will create a holistic view of the application of foam
cleaning in the brewing industry in order to enhance quality
transformation goals by on-line validation results.
In his executive function as head of the VLB Department
of Brewing & Beverage Science and Applications (BBSA),
Roland Folz is involved in driving forward the process of VLB’s
internationalization. VLB is a German independent research
institute and service provider for the brewing and beverage
industries. Roland has built up his brewing career from scratch,
starting with his technical apprenticeship as a brewer and
maltster at the Beck’s brewery up to his doctorate degree with
a thesis on flavor stability and PET topics. In between he has
been technical director for the Preussen Pils brewery and plant
manager for the Oettinger Group. Under Roland’s leadership
the BBSA at VLB-Berlin has become an international provider
of mission-orientated research and solutions regarding
technological topics, global consultancies, and international
training courses. With his team of experienced engineers,
Roland is working on sustainable developments for the brewing
industry, future brewing streams, and fermentation and applied
microbiological concepts and control mechanisms. Roland is
active on the Board of Examiners of IBD (Institute of Brewing
and Distilling) and is heading the Working Group for Inline
Measurement Techniques of MEBAK (Middle European
Brewing Analysis Committee). Furthermore, he is a member of
ISBT (International Society of Beverage Technologists), MBAA,
and ASBC.
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