the storage tanks, is aimed at both the agricultural sector and
milking machine manufacturers as well as dairies and planners
of process plants for dairies. The patent allows the construction
of ultra-clean chains from
farm to packaging. Since the
sterile air process reliably protects
the food from bacteria,
the addition of preservatives
can be minimised (if applicable).
In principle, there are four possible
sources of pathogens: the
animal (cattle, sheep, goats),
the barn or the barn air, the
road transport of raw milk and
processing. The hygiene problem
of processing, i.e. the production
facilities as the fourth
source, is caused by the often
inadequate filter technology.
When the container is full, the
vacuum created sucks contaminated
air past the filter via
leaks in the connections of the
storage and intermediate containers
and thus destroys the
You can access the video documentary of the award
ceremony via this QR code
success of the upstream sterilisation of both the semi-finished
product and the air. The positive results of trials by Fischer
Planning in Israel were confirmed by test series in Germany.
Dairy sector ¦ IDM
Fischer Planning installed a test facility on the Häfele farm near
Hergatz, Bavaria, and entrusted the scientific evaluation to the
Hüfner Dairy Institute. Fischer Planning was also invited by
DMK Deutsches Milch Kontor
to compare vacuum extraction
with and without Sterivent
technology on the farm of
the Karbower Agrargenossenschaft
in Karbow/
Mecklenburg-Vorpommern.
The evaluation referred to the
bacterial count in the cow's
milk directly after milking in
an airtight container.
The results: In Israel, the laboratory
staff measured less
than 100 CFU/ml in the "Fisher
milk", but between 3,000
and 7,000 CFU/ml, depending
on the cow, in the milking
process without sterilised air.
In Hergatz, a group of bacteria
including pseudomonads
had concentrated from 900
after the first day to 37,000
CFU on the fifth day. In the
containers with "Fisher milk", on the other hand, the pseudomonad
germ count remained at less than 10 CFU after five
days.
Conventional
Contanminated air
Sterile over-pressure
Udder
Improved hygiene in milk production has a clearly positive impact on the entire process and distribution chain
(Fig.: Fisher Planning)
July/August 2021 ¦ international-dairy.com · 25
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