Peel Plate SA Microbial Test for Staph

Food Safety Solutions / Microbial Detection / Peel Plate SA Microbial Test

Staphylococcus aureus can be found on the skin and hair and in the noses and throats of people and animals.

In a food processing environment, these bacteria can be present in eggs, meat, poultry, milk, and dairy products and spread through hand contact with environmental surfaces or hand-prepared food items. S. aureus multiplies quickly at room temperature and causes illness when ingested.

Benefits of Charm Microbial Peel Plate Tests

  • Ready-to-use. Self-wicking; no spreading device needed.
  • Colonies easily transferred or picked for additional confirmation/isolation/classification.
  • Improved air circulation with spacing between stacked, interlocked plates.
  • Buffered media formulation for robust performance with acidic foods and neutralizing buffers.
  • pH adjustments not required for most samples.
  • 12-month refrigerated shelf-life in a resealable foil zip bag.
  • Verified for dairy, foods, rinse water, and surface samples at 35 -37 °C.

Staphylococcus Aureus Testing Solution


The Peel Plate SA Microbial Test is a prepared culture medium used for the enzymatic detection and enumeration of Staph aureus bacteria in finished products and environmental samples.

Peel Plate SA Microbial Test kits are used for testing liquid foods, solid foods, and environmental sponge samples. The purple-colored colonies of coagulase-positive S. aureus are easily distinguished against the light background of the Peel Plate and easily differentiated from the green and green-blue colonies of most coagulase-negative Staphylococci and related Enterococci species.

S. aureus bacteria appear within 24 hours, with an additional 24 hours for purple colony presumptive positive determination (48 hours total) at 35 to 37°C. Tests with no growth at 24 hours are considered negative for S. aureus. Presumptive positive colonies are confirmed Staph aureus following FDA-BAM procedures for verifying the enzymes catalase and coagulase positive.

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Simple Procedure for S. aureus Peel Plates





The Peel Plate Advantage

Tests are very easy to use and do not require a spreader device. Samples are completely contained within the Peel Plates, reducing potential contamination from leakage.

Colonies can be easily transferred or picked for confirmation testing, additional isolation, or classification.

Charm Peel Plates Microbial Tests are easily interpreted with final results for Staphylococcus aureus in 24-48 hours with no overlays required.


  • Sensitivity: >1 CFU/mL of test sample
  • Quantitative range: 10 – 150 CFU/plate
  • Incubation: 24 – 48 hours at 35 – 37 °C

Fast & Accurate Colony Counting

The Peel Plate Colony Counters accurately count the colonies in under four seconds.

Related Staphylococcus Aureus Products

Peel Plate SA Microbial Test for Cultured Dairy

Available to test cultured dairy products, like yogurt and cheeses, for Staphylococcus aureus.

EZ Reach Sponges Sampler

Ideal for collecting environmental surface samples without touching the sponge.

PUR-Blue Swab Sampler

Allows you to vigorously scrub rough surfaces, disrupt biofilms, and lift organisms for sample collection.

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