Why Deterministic Methods are Replacing Microbial Ingress for CCI Assurance?
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Container Closure Integrity (CCI) testing is gaining more attention as packaging systems evolve to meet modern pharmaceutical requirements. As the industry adapts to biologics, cell and gene therapies, and other sensitive drug formulations, traditional approaches like microbial ingress testing are being reconsidered. While microbial ingress has been widely used to simulate microbial contamination, it falls short in terms of repeatability and accuracy. Deterministic methods are steadily gaining traction for CCI assurance, offering precision and consistency that align better with today's regulatory expectations and product complexities. Understanding Microbial Ingress: What It Offers—and What It Lacks Microbial ingress testing has been a long-standing method for evaluating the barrier properties of packaging systems. In this method, a test unit is exposed to a microbial challenge, typically involving immersion in a broth containing microorganisms, to assess whether bacteri...