3M™ Petrifilm™ Yeast & Mould Count

With the 3M™ Petrifilm™ Yeast and Mold Count Plate, you can determine yeast and mold population in 3-5 days.  

Fast, Accurate, Results in 3-5 days with three easy steps

1) Inoculate – 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 – Yeast are typically indicated by small, blue-green colonies with defined edges and no foci. Molds are indicated by large, variably-colored colonies with diffuse edges and center foci. A built in grid facilitates counting colonies, giving you fast, precise and accurate results.   

Increased Productivity. Reduced Costs. Proven as reliable as Antibiotic-supplemented Potato Dextrose Agar (APDA), acidified potato dextrose agar, and antibiotic-supplemented plate count agar, 3M™ Petrifilm™ Yeast and Mold Count Plates are easier to use.  Their exclusive sample-ready design features a film coated with nutrients and gelling agents, so there’s no need for the addition of antibiotics or tartaric acid.

A survey of 274 plants who converted to Petrifilm Plates from traditional agar methods found an average labor savings of 45% and an average increased technician efficiency of 80%.

By using labor-saving Petrifilm Plates, you’ll have time to monitor your process more frequently. The end result is better process control, a higher quality product and an overall reduction in operational costs. 

Yeast is typically indicated by small, blue-green colonies, with defined edges and no foci.

Mould is indicated by large, variably-coloured colonies, with diffuse edges and centre foci.

Click here for a brochure with more information.

Click here to download instructions & interpretation guide.

Video of Tips on how to use Petrifilm plates without a foam dam. (MOV 798K)