• Science for the modern lab.

  • Advance your lab with 3M™ Petrifilm™ Plates and the 3M™ Petrifilm™ Plate Reader Advanced. Save time without agar preparation. Get a wide range of indicator organism plates that are ready to go right out of the pack and require less energy and water than traditional methods.

Proven testing method for consistent, reliable results.

3M™ Petrifilm™ testing solutions provide an advanced approach for your indicator organism testing.

Indicator Organism Testing Solutions

Easier processes. Faster results. Space saving designs. Find evolved testing methods to meet the needs of today’s modern labs.

  • The 3M Petrifilm Plate Reader Advanced next to three plates and a laptop displaying test results.
    Fast and accurate colony counting.

    The 3M™ Petrifilm™ Plate Reader Advanced accurately enumerates plates in 6 seconds or less.

  • Four 3M Petrifilm Rapid Plates with a blue background.
    Get results up to twice as fast.

    3M™ Petrifilm™ Rapid Plates give you all the advantages of our standard 3M Petrifilm Plates with a faster time to result.

Use a system you can trust.

Third-party validations confirm that our method has proven to be reliable and repeatable and performs equal to or better than the reference method to which it was compared.

  • AOAC International logo.
    AOAC INTERNATIONAL

    Certified as AOAC® Performance Tested Method(SM) and AOAC® Official Method of Analysis(SM)

  • ANFOR Groupe logo.
    AFNOR

    NF VALIDATION certificate granted by AFNOR Certification


How to use 3M™ Petrifilm™ Plates

Accurate testing requires accurate sampling. Before starting the simple, three-step process, ensure your sample is ready for testing.

  • A 3M Petrifilm Plate being inoculated.
    1. Inoculate.

    Eliminate media preparation — plates are ready to inoculate.

  • A 3M Petrifilm Plate during incubation.
    2. Incubate.

    A compact incubator is all you need.

  • Colony counting of a 3M Petrifilm Plate.
    3. Interpret.

    Indicator dyes facilitate colony counting. Use the 3M™ Petrifilm™ Plate Reader Advanced to automate your counting process.

  • A lab worker preparing to test 3M Petrifilm Plates.
    See the process in action.

    Watch the how-to video for 3M™ Petrifilm™ Plates.

Looking for more instructions for 3M™ Petrifilm™ Plates?

Find instructional documents, videos, and more.

  • A preview of procedure detail pages.
    Environmental Monitoring Procedures

    3M Petrifilm plates can be used for environmental monitoring, including surface monitoring using a direct contact method, swabs or sponges, and air sampling.

  • A lab worker conducting environmental monitoring with six organism and testing icons to the right.
    Environmental Monitoring

    Indicator organism testing is just one part of a strong environmental monitoring program.


Find more food safety testing resources.

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  • Tap into our team of account experts. We’re on stand-by to support you.

  • Buy food safety testing products directly from 3M, or find a local authorized distributor.

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