ARE YOU SPENDING TOO MUCH ON MICROBIAL LIMIT TESTING?

For manufacturers of products where microbial quality is critical, microbial limit testing can be time-consuming and costly, especially when routine testing is performed frequently across many batches, formulations, or stability samples.

This calculator helps you estimate how much cost could potentially be saved if water activity is used as a supporting risk-based parameter to reduce avoidable microbial limit testing effort. By entering your own MLT workload, testing costs, QC handling time, aw measurement effort, annual operating costs, and investment assumptions, you can quickly calculate the expected annual savings, payback time, and discounted net saving over the selected evaluation period.

Water activity does not automatically replace required microbial limit testing. However, it can help QC and QA teams better understand whether a product environment can support microbial growth, strengthen risk-based control strategies, and focus microbial testing where it is most relevant.