When it comes to clean-in-place equipment (CIP) for pharmaceutical manufacturing, many assume that a one-time installation is all that’s needed.
However, those with experience in pharma, biotech, or food production facilities know that CIP systems are far more complex than simple plug-and-play solutions. What works for a research facility that includes work with microorganisms would not be suitable for a company manufacturing medicines.
This is why CIP equipment cannot be standardised. Each industry, facility, and process has highly specific requirements for its cleaning cycles. But that’s not all. Here are 7 reasons why your CIP systems cannot be standardised.
1. Every Process Leaves Its Own Mark
Even when two facilities are producing similar products, the residues can behave very differently. A syrup line will have very different fouling patterns compared to protein-based pharmaceutical processes.
In some cases, a slightly longer than required process cycle or a shift in raw materials can also change how the residue will stick to surfaces.
What this means is that cleaning parameters such as time, temperature, flow, and chemical concentration cannot work universally.
2. Equipment Design Is Never Identical
On paper, two fermenters might look the same. In reality, there will be minor differences in their geometry and also the way they are placed in the process. The angle of a cone bottom, the number of ports, or the placement of agitators changes the way cleaning solutions flow and drain.
There are also other considerations, like piping layouts where T-junctions and hard-to-reach corners can create areas where detergent never fully circulates. These micro-variations mean you can’t assume one cleaning cycle will achieve the same results across multiple vessels.
3. Chemical Compatibility Isn’t Universal
The detergents and disinfectants used in CIP have to be chosen carefully, depending on the chemicals or food you’re handling. Some surfaces can tolerate caustic soda or peracetic acid, while others can’t. You also need to consider other materials like the seals and gaskets.
Chemicals that work in steel pipelines may shorten the lifespan of rubber seals or gaskets. In such cases, trying to apply the same chemical programme across all equipment can backfire.
4. Microbial Risks Differ by Application
Biofilm formation is one of the hardest challenges in any cleaning regime. These sticky microbes can resist normal wash cycles, and once they appear, they’re difficult to remove. The risk level varies between industries. For example, the risk could be high in dairy or biotech industries and lower in chemical plants.
A standardised CIP cycle won’t account for this variability. You might need specific cleaning intensities or additional monitoring in higher-risk environments.
5. Drainage Can Make or Break Cleaning
It may seem like a small detail, but drainage plays a huge role in CIP effectiveness. If your vessel or system has poorly sloped lines, long runs of pipe, or tanks without proper outlet design, it could lead to puddles of cleaning solution.
Even rinse cycles become less effective if water can’t fully drain. Each facility has different drainage requirements, which makes it difficult to install a standardised CIP system.
6. Control Systems Have Limits
CIP works on automated systems, but that only helps when the sensors and controls are properly tuned. Flow meters, conductivity sensors, and temperature probes need to give you accurate feedback so that the system can clean consistently.
However, facilities differ in how much monitoring equipment they install. Some invest heavily in real-time controls, while others rely on minimal instrumentation. This variability undermines the idea of standardisation.
7. There’s Still Room for Human Error
Despite having automatic CIP systems, it still requires some manual effort. Your operators will initiate cycles, change parameters, and sometimes intervene mid-process. A slightly incorrect setting, skipped validation, or even simple inattention can change the outcomes.
Even within the same organisation, the way different teams handle equipment can be different. Standardisation assumes perfect behaviour across all sites and shifts, but that’s not realistic, which is why you need customised solutions.
Summing It Up
When you look at all of these factors together, the conclusion is clear. You cannot treat CIP as a system that needs to be just bought and delivered. You need to consult relevant partners, who understand the process of your facility and suggest validated CIP systems based on your requirements.
In regulated industries, failure to validate cleaning processes can trigger warning letters, batch rejections, and even lead to product recall in certain cases. The financial and reputational costs of inadequate cleaning are always more than the investment you have to make to get a proper and customised design.
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