Principles and Practice of Cleaning in Place ( Graham Broadhurst )
Contents
CIP/SIP – Definitions / Function
Principles of CIP
CIP Detergents
CIP Systems
Vessel CIP
Mains CIP
Monitoring/Control
CIP / SIP – Definition
CIP = Cleaning in Place
To clean the product contact surfaces of vessels, equipment and pipework in place. i.e. without dismantling.
SIP = Sterilise in Place
To ensure product contact surfaces are sufficiently sterile to minimise product infection.
How CIP Works
Mechanical
Removes ‘loose’ soil by Impact / Turbulence
Chemical
Breaks up and removes remaining soil by Chemical action
Sterilant/Sanitiser
‘Kills’ remaining micro-organisms (to an acceptable level)
Factors affecting CIP
Mechanical
Chemical
Temperature
Time
CIP Operation
PRE-RINSE
– Mechanical Removal of Soil
DETERGENT
– Cleaning of Remaining Soil
– Caustic, Acid or Both
FINAL RINSE
– Wash Residual Detergent/Soil
STERILANT/SANITISER
– Cold or Hot
…