Niro Soavi S.p.A
3.6. CLEANING
A thouroug of the machine will maintain the sanitary or aseptic conditions as
necessary to avoid harmful deterioration or contamination of the product
handled.
When designing the machine, special care has been given to the parts in
contact with the product to make them easily cleanable (C.I.P.) and to avoid
recesses where the product may stagnate.
However, the following recommendations should be followed to ensure hygiene:
• to avoid the formation of a product film on the inner surfaces and product
deposit, the machine should be cleaned IMMEDIATELY after production. Do
not allow the product to rest inside the machine, and do not let the empty
machine stand still without rinsing it;
• make sure that any residue of chemical solution used for cleaning is
completely removed by rinsing the machine thoroughly;
• if the cleaning solutions involve the use of concentrated products or powders,
first prepare the solutions separately in order to avoid any undissolved clods
or solid particles.
Cleaning should be performed in a closed cycle (C.I.P.) while the machine is
running at homogenizing pressure equal to zero (for homogenizers).
This allows avoiding energy waste and damage to the homogenizing valve.
WARNING: For the machines with variable or double capacity, the
cleaning should be performed at the maximum speed admitted, however
not exceeding the maximum operating capacity by more than 20% (see
Section 1 – TECHNICAL SPECIFICATIONS).
WARNING: The products used for cleaning and rinsing of the equipment
should contain only the substances specified in Table 3.6.A.
The presence of CHLORINE and IODINE ions - including simple traces - is
very harmful to the materials used in the construction of the machine, as
it may lead to stress corrosion phenomena which may cause the
compression block failure in a short time and unpredictably.
3C001E0C.DOC 3.6.1
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