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  • Petrifilm Lactic Acid Bacteria count plates


These time saving ready-to-use plates simplify the testing process for lactic acid bacteria in your food products, raw materials and production environment and give accurate results in less time, helping you reduce waste, minimize recalls and protect your reputation in the marketplace.

Anaerobic made easy

Now you can get true anaerobic results using standard aerobic incubation conditions. The self-contained anaerobic environment in this plate enhances the recovery of lactic acid bacteria, providing fast, accurate results for effective control of product quality and shelf life.

  • Self-contained anaerobic environment enabled by oxygen-scavenging technology and oxygen-barrier films. No gas packs, chambers, or CO₂ incubators needed.
  • Results in 48 hours of incubation time.
  • Ready-to-use plates eliminates the need for labor intensive media preparation, special diluents and sample pH adjustment.
  • All-in-one method for differentiation of gas-producing colonies without Durham tubes or extra steps.
  • Proven reliability versus MRS and APT agar methods. Can be used to test a broad range of foods and environmental samples.
  • 3M™ Petrifilm™ Count Plates use 75% less energy, use 79% less water, produce 75% less greenhouse gases and result in 66% less waste (by weight and volume) compared to competitive agar methods.
  • Companies worldwide trust 3M Petrifilm Plates to provide accurate, efficient, consistent results.
Introducing the first self-contained anaerobic plates for lactic acid bacteria testing: 3M™ Petrifilm™ Lactic Acid Bacteria Count Plates.

Every day, food processors, retailers and consumers are forced to throw out food spoiled with lactic acid bacteria. These normally useful bacteria can cause undesirable changes to ready-to-eat meats and seafood, dressings and sauces, vegetables and many other processed foods. This not only contributes to food waste and costly recalls, but can also damage your brand reputation.

Not only is Petrifilm easier & quicker, it's also the more sustainable solution - 

*Reduction in Primary Energy Demand, Blue Water Consumption and Greenhouse Gas Emissions from 3M™ Petrifilm™ Plates Compared to Traditional Microbiological Analysis Method,” Jason Howland, 3M Environmental Laboratory and Hannah Bakken, 3M Food Safety, 2015.


Fast, accurate testing in just 3 steps:

  • 1. Inoculate with 1 mL of sample. Simply lift the top film, add the sample, and roll the top film down.
  • 2. Incubate at the appropriate temperature (28°C to 37°C). The space saving design minimizes incubator space requirements.
  • 3. Count the red colonies after 48 hours. The 3M Petrifilm Lactic Acid Bacteria Count Plate is able to differentiate between homofermentative (non gas-producing) and heterofermentative (gas-producing) colonies.


Technical Specs
Product Variance 6461 - 3M Petrifilm Lactic Acid Bacteria Count Plate, Pk 50.
6462 - 3M Petrifilm Lactic Acid Bacteria Count Plate, Pk 500.
6425 - 3M Petrifilm Flat Spreader, Pk 2

Petrifilm Lactic Acid Bacteria count plates

  • Product Code: Lactic Acid

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