Cleaning
28 © Meyn Food Processing Technology B.V.
5.2.4 Acid foam cleaning
"Hard" water causes calcium and rust deposits on the machine. In order to remove
these, a regularly performed acid foam cleaning is necessary. Depending on the
hardness of the water this may be either once a month or more often if necessary.
• Foam the machine from top to bottom. Foaming may be performed
while the machine is running, provided sufficient distance is kept from the moving
parts of the machine. Mind the other machines and the overhead conveyor.
• After affecting, the dirt and foam residue should be removed thoroughly by means
of the high-pressure water jet.
For acid foam cleaning use the following equipment:
• A fixed piping system for foam supplying.
• A large spray-nozzle of the flat-jet type, that distributes the foam equally along the
surface.
• The used acid foam detergent should not affect the materials with which it comes
into contact. Consult your detergent supplier which detergents fulfil these specific
conditions and the concerning directions for operation. Obey these instructions
carefully. An incorrect application may be dangerous.
It is advisable not to use spring water for the production of foam; this water may con-
tain a high degree of chloride. Tap water reduces the chance of rust.
Contact between acids and chlorous products results in a poisonous gas.
Ensure that these products do not come in contact with each other.
Ventilate the room in which you are working.