Dairy Processing - January/February 2024 - 47

INHERENT OBSTACLES
Not unexpectedly, moving away from wet cleaning practices
can come with some challenges.
" In general, legacy equipment was designed to be
cleaned with wet chemical solutions, which creates a few
stumbling blocks in the transition to dry cleaning, " Hines
said. " Dry cleaning generally requires a more hands-on
approach compared to liquid CIP solutions. For example,
maintenance may require manual scrubbing, as opposed to
the automated spraying or flowing associated with liquid
CIP solutions. "
The atmospheric moisture within a designated space,
he added, introduces another set of potential problems to
consider.
" Controlling humidity and maintaining a dry environment
can also pose challenges since common facility items like
work boots, wheels and pallets can unintentionally create
microorganism concerns by tracking water into places it
shouldn't be, " Hines explained.
Additionally, while it is possible to design a validated
dry cleaning program to manage allergens, he said doing so
is more difficult than making programs with liquid-based
sanitation practices.
The Innovation Center noted that the evaporation of any
liquids - and especially those containing water - may result
in the relative humidity changing in a room, depending on
a facility's air handling efficiency. And a change in relative
humidity could lead to the formation of condensation at
another point in the system.
The center offers a seven-step manual for cleaning and
sanitation in a dry environment. It involves pre-sanitation
preparation; securing, dismantling and inspecting equipment;
pre-cleaning; detail cleaning; final cleaning; sanitation
inspections; and final inspection and documentation.
Along with the necessary details tied to each step in the
process, the center's guidance gives examples of results
that point to poor sanitation and sources of contamination.
Those include water in dry areas, high pressure air, reusable
cleaning tools, system breeches, undetected water leaks,
product buildup and unbalanced air flow.
DAIRYPROCESSING.COM | JAN-FEB 2024 47

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Dairy Processing - January/February 2024

Table of Contents for the Digital Edition of Dairy Processing - January/February 2024

Dairy Processing - January/February 2024 - Intro
Dairy Processing - January/February 2024 - FCa
Dairy Processing - January/February 2024 - FCb
Dairy Processing - January/February 2024 - 1
Dairy Processing - January/February 2024 - 2
Dairy Processing - January/February 2024 - 3
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