PMM launches condensation control design for contact plates

By Alexa Hornbeck | Published: 5-Feb-2026

The manufacturer of culture media for environmental monitoring has developed a new design for contact plates to prevent yellowish condensation

Pharmamedia Dr. Müller, known as PMM, has redesigned contact plates to reduce condensation risks in surface sampling applications.

The manufacturer of culture media for environmental monitoring in pharmaceutical and cleanroom settings has engineered a condensation control design to improve safety and usability during surface microbial sampling. 

Condensation formation on plated culture media has long been a concern for surface monitoring, particularly when temperature fluctuations during transport or storage cause moisture to accumulate on plate lids or packaging. 

While clear condensation droplets generally do not interfere with applications, heavier yellowish condensation that contacts the medium surface can pose risks for handling and data integrity. 

PMM’s redesigned contact plates incorporate condensation collection channels in the lid support structure. 

These channels draw and retain moisture by capillary action, preventing liquid from draining out of the plate or onto users’ hands if condensation forms on the agar surface.

According to PMM, this improvement builds on process refinements that have already reduced condensation occurrence, such as optimised filling and storage protocols and enhanced customer training. 

The company said the new design specifically targets remaining condensation issues that could affect safety or handling in environmental monitoring workflows. 

The updated contact plates are positioned as a user‑friendly option for cleanroom and pharmaceutical quality control programmes where reliable surface sampling is critical.

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