In Dairy processing, cleaning is a severe job -- Every day
CIP — Cleaning in place — Standard programs.
Pre-rinse
Wets the interior surface of the lines and tanks
Removes most of the remaining residue
Dissolves sugars and partially melts fats
Provides a non-chemical pressure test of the CIP flow path
Alkali wash cycle
The detergent media used in alkali wash cycle has a very high pH. The concentration in the circulated detergent is under normal circumstances 1-2% but can go up to 3-4% if heavily soiled surfaces
Alkali is the leading detergent in most CIP wash cycles.
In many cases, the caustic wash can be returned to its tank and reused multiple times, significantly reducing water, chemical, and energy costs.
Intermediate wash cycle
Freshwater flushes out residual traces of detergent remaining from the caustic wash
Conductivity Transmitters ensure chemical levels are hitting a predetermined set point.
Final rinse
Rinse with well water to flush residual cleaning agents.
The final rinse water may be recovered and reused as the pre-rinse solution for the next cleaning cycle in many systems.
Sanitising
Preferably hydrogen peroxide or nitric acid (The authors personal choice)
It is a strong disinfectant even at low temperatures.
Rinses away any leftover from detergent while leaving little or no chlorine residue to corrode stainless steel.
If done correctly, it kills microorganisms, including spoilage organisms, pathogens and bacterial spores.
It has also proven to be more eco-friendly in the wastewater stream.
Make sure that instrumentation is in good shape on your CIP Unit.
Level Transmitters and Probes monitor tank levels of wash and rinse tanks.
Flow Transmitters ensure optimum flow for spray devices to, e.g. tank
Conductivity Transmitters ensure chemical levels are hitting a predetermined set point.
CIP can be done everywhere
Mejeriet has, as usual, made three categories.
Mini – 23.01
Medium – 23.21
Large – 23.41
Each category has at least 20 different variations waiting for your decision.