Page 57 - Microsoft Word -Cow Book 10-06-09 final update.doc

Below is an example of a method used to clean the milking equipment follow-
ing each milking. Other methods may be used; however most will follow the
example provided.

NOTE: Some newer installations have installed combination milk receiver/CIP
tanks. These must be reviewed individually for compliance with Items
5r (Cleaning Facilities), Item 8r (Water Supply), Item 9r
(Construction), Item 14r (Protection from Contamination) and Items
10r & 11r (Equipment Cleaning and Sanitizing).

Begin with, rinsing all milk contact surfaces with clean cool or tepid water,
never hot since this can "set" protein on the inner surfaces, coagulate the
milk or actually cook milk onto the surfaces, or damage the equipment. This
pre-rinse also effectively removes any excess milk and foam which could
affect or weaken the cleaning properties of the washing chemicals.

Next is the washing cycle. Almost all operations use the CIP method of
cleaning. The recommended amount of acceptable dairy cleaner (usually
chlorinated) is added to the cleaning compartment utensil sink with the
necessary properties such as surfactant, wetting, dissolving, emulsifying,
deflocculating, dispersion, rinsing, and buffering agents. Household type
detergents therefore should never be substituted and used for cleaning
dairy equipment and utensils. Testing for water hardness may be necessary
to determine proper cleaning compounds to be used on those dairy farms
with individual water systems.

Following the wash cycle the milk equipment is rinsed thoroughly with clean
water and stored to completely drain and must be protected from
contamination.

5. The equipment should be evaluated for the following materials or deposits:

 Milk protein residues - These are evidenced by layered deposits of
milk fat which have been ineffectively cleaned over a period of time.
These residues will be white to yellowish in color. Heavy residues will
have a white-yellow tint and are usually visible with the help of a bright
light source. These heavy deposits may appear as a solid sheet or in a
streaked pattern on the surface. Milk protein films will often appear as
streaks on the surface, some of them even displaying a multi-color
streaking, often termed "rainbow sheen". The use of ____________
_________ will remove most milk fat/protein deposits from equipment.

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