Aerobic counting plates
PETRIFILM 3M
Easy-to-use plates
3M’s Petrifilm aerobic counting plate is a portable test with an indicator to determine the levels of microorganisms in the food and food production sectors. It is designed to help companies ensure quality assurance and reduce food spoilage, while allowing accurate and fast counts, which are crucial for the timing of quality control and corrective action decision-making.
3M Petrifilm plates contain specific nutrients depending on the microorganism to be isolated, as well as a gelling agent that is soluble in cold water.
The indicator technology allows colony counts within 24 hours for most types of media.
Faster results and less labour allow food manufacturers as well as breweries to spend more time monitoring processes to ensure tighter controls and higher quality products.
3M’s Petrifilm plates give food professionals the confidence that they have done everything possible to protect their customers and their reputation.
Easy to use, only three steps are required to achieve accurate and fast results using 3M’s Petrifilm aerobic count plates.
- Inoculating the plate with 1mL of sample
- Incubation at the appropriate temperature (27°/30°C).
- After incubation, colonies can be readily identified, sometimes as spots or dots surrounded by bubbles.
This depends on the different types of micro-organisms
- Colony counting by means of an indicator dye in the plate, which simplifies colony counting.


3M Petrifilm Rapid aerobic counting
A petrifilm medium for the enumeration of aerobic bacteria in just 24 hours.
Ideal for checking the sterility of must leaving the heat exchanger, rinse water, and environmental buffers, it offers very reliable results with a resolution of 1 CFU/ml.


3M Petrifilm Yeasts and moulds
Petrifilm medium for the enumeration of yeasts and moulds
Ideal for the isolation and enumeration of Saccharomyces and non-Saccharomyces yeasts throughout production.
Also enables mould control on surfaces. It offers reliable results with a resolution of 1 CFU/ml.
3M Petrifilm Lactic bacteria
Rapid petrifilm medium for enumeration of lactic acid bacteria in only 48h
Ideal for the isolation and enumeration of Lactobacilli and Pediococci.
It offers reliable results with a resolution of 1 CFU/ml.


Petrifilm 3M E.coli and coliforms
Differential petrifilm medium for E.coli and coliforms.
Ideal for the isolation and enumeration of E.coli and coliforms in finished beer.
It offers reliable results with a resolution of 1 CFU/ml.