Cleaning and disinfection
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VCM 44
Concentration
The speed of germ killing can be fundamentally increased by the use of a higher concentration
of the disinfectant. The use of higher concentrations is limited by problems of toxicity on use,
the increased danger of affecting foodstuffs (see safety precautions below) as well as the in-
creased corrosive effect on metals.
Temperature
An increase in temperature promotes while a temperature reduction lowers the anti-microbial
effectiveness. Some disinfectants, such as peracetic acid or some iodine products are less af-
fected by temperature changes than other media and may therefore also be used at low tem-
peratures.
Protein errors
The disinfectants react not only with the organic components of microorganisms, but also with
organic contaminants, in particular with protein chains. The action of certain disinfectants such
as chlorine products and iodine products is particularly strongly affected.
10.2.2 Disinfection procedure
Fluid preparations of the disinfectant may be applied to surfaces manually with a cloth or with
the support of a brush (scouring disinfection), or mechanically, with or without pressure.
Removable short pipe lengths, valves, hoses or other small parts (implements, blades, seals)
may be filled with the disinfectant solution in use or immersed in the solution. (Filling and im-
mersion disinfection).
Always observe the manufacturer´s usage and safety instructions when using clean-
ing and disinfecting agents! Misuse may cause: serious damage to health, increased
residues in foodstuffs and corrosion of the machine.
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