Code of Veterinary Practice For Poultry Processing Plant
checking. In theory a check could be carried out to ensure the quality of the product and these checks provide an indirect check on the ef ciency of cleaning. Thus, in practice, the checking of effectiveness of cleaning depends upon the quality assurance for the product, bearing in mind that a deterioration in quality is often due to failure in cleaning.
2.5 It is recommended that samples should be accompanied by a report which identi es the place, date and time of sampling including any batch details and the name and designation of the sampling personnel. When appropriate, the report should also include any relevant conditions or circumstances (for example the ante-mortem condition of the birds, post mortem  ndings, processing changes which may arise from power failures, breakdown etc.).
3.0 INSPECTION AND SAMPLING PROCEDURES
3.1 Visual Inspection
3.1.1 An immediate and important impression of the cleanliness of a production line in a poultry processing plant can be obtained by visual inspection of the accessible parts of a plant. These include all open containers, contact surfaces, processing equipment and conveyor belts.
3.1.2 Visual inspection may be carried out using an ordinary  ashlight or by UV-light. Among many other con rmatory tests the following may be applied to the surface under examination.
a) No sign of  uorescence shall be detectable when the surface is carefully inspected with long wave-length (340 to 380mm) ultraviolet light.
b) A sterile spatula may be used to scrape a surface carefully to demonstrate the presence of a  lm or residues on improper cleaned equipment.
c) A piece of clean disposal muslin or tissue paper wiped over metal surfaces of processing equipment will be soiled if the surface is improperly cleaned.
60