3M E.coli/Coliform Count Plates


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3M™ Petrifilm™ E. coli/Coliform Count Plates

The 3M™ Petrifilm™ E.coli/Coliform Count Plate identifies both E. coli and other coliforms with confirmed results in just 24-48 hours.


The 3M™ Petrifilm™ E.coli/Coliform Count Plate provides a confirmed result in 24 to 48 hours. By eliminating the confirmation steps you increase productivity and reduce overall lab costs. Fast, Accurate, Results in either 24 or 48 hours with three easy steps: 

1) Inoculate - 3M™ Petrifilm™ Plates are easy to inoculate. Lift the top film and add sample 

2) Incubate - The space saving design maximizes incubator space and 

3) Enumerate - Confirmed coliforms are red and blue colonies with associated gas bubbles. Confirmed E.coli coliforms are blue colonies with associated gas bubbles. This 3M Petrifilm Plate can also be read in 4 seconds using the 3M™ Petrifilm™ Plate Reader.



3M™ Petrifilm™ E. coli/Coliform Count Plates provide the most cost-effective, convenient and reliable confirmation method for testing equipment, raw materials, food products and the manufacturing environment enabling you to monitor critical control points more frequently. The plate provides both E.coli and total coliform count information. 

  • Quick and easy confirmed test results provide you with better information to make the right decisions. 
  • The end result is higher quality product, better process control and an overall reduction in operational costs. 
  • Increased technician labor productivity. Reduced costs. 
  • A survey of 274 plants who converted to 3M™ Petrifilm™ Plates from traditional agar methods found an average labor savings of 45% and an average increased technician efficiency of 80%. 

    Our full line of easy-to-use 3M Petrifilm Plates can provide you with many benefits over traditional methods: 

  • Accurate results in three easy steps: inoculate, incubate and count 
  • Improved efficiency 
  • Reduced labor costs 
  • Standardization of methodology 
  • Consistent and reliable test results