Easy Plate - Aerobic Bacteria Rapid (AC-R)
Kikkoman Biochemifa · Easy Plate range
Easy Plate AC-R is a rapid prepared media plate for counting aerobic bacteria. A chemical indicator turns colonies red so they are easy to see and count in just 24 hours, with no media preparation or sterilisation.
| Incubation | 24 ± 1 h at 35 ± 1 ℃ |
| Pack size | 100 tests (25 × 4 bags) |
| Shelf life | 12 months unopened (2–8 ℃) |
| Certification | AOAC RI PTM |
Benefits
- Results in 24 hours: Half the 48 hours of a standard aerobic plate count.
- No media preparation: Ready to use straight from the pack, with no pouring, sterilising or waiting for agar to set.
- One sheet per test: A single Easy Plate replaces the three or more plates usually needed for surface plating.
- Less Bacillus spreading: Spreading colonies are controlled, which keeps counts clean.
- Independently certified: AOAC RI PTM certification supports your audit records.
Videos
Features
Bright red colonies that are easy to tell apart
The colour change makes identification simpler than on agar count media, so there is no need to check for air bubbles or colony size.
Less spreading from Bacillus
Bacillus spp. colonies spread easily on conventional agar media. On Easy Plate the spreading is controlled, which keeps counts clean.
High correlation with plate count agar
Results correlate closely with standard plate count agar across a range of foods (R = 0.97).

Counting the plate
- Count all red colonies regardless of size or intensity.
- The ideal count is between 1 and 250 colonies.
- With some samples, colonies may not have grown enough after 24 hours. If so, extend the incubation as needed.
Examples
Colony colours with different strains and foods. Incubation: 35 ℃, 48 hours (diluent: phosphate buffered saline). Colours are for example only.
How it works
- 1Peel open the cover film.
- 2Add the sample to the centre of the plate.
- 3Close the cover film. The sample spreads evenly across the plate without a spreader.
- 4Incubate at 35 ± 1 ℃ for 24 ± 1 hours (longer if growth is not yet sufficient).
- 5Count the red colonies by eye, or automatically with the Easy Plate Colony Counting Scanner.
Technical Specification
| Packaging | 100 tests (25 tests × 4 bags) |
|---|---|
| Target microorganism | Aerobic bacteria |
| Incubation time | 24 ± 1 hours. With some samples growth may be insufficient after 24 hours; extend the incubation if needed. |
| Incubation temperature | 35 ± 1 ℃ |
| Storage (unopened) | 2–8 ℃ |
| Storage (after opening) | Fold the open end of the package at least twice and tape it. Store in a refrigerator (2–8 ℃) and use within 3 months. |
| Shelf life | 12 months after manufacturing date |
| Certification | AOAC RI PTM (certificate under Documentation) |
Storage Conditions
Before opening: store Easy Plate in a refrigerator at 2–8 ℃. Before the packaging is opened, it may be kept at up to 25 ℃ for a maximum of 14 days, or up to 30 ℃ for a maximum of 5 days.
After opening: return any unused sheets to the original packaging, fold the end over twice and seal it securely with tape. Under refrigeration (2–8 ℃), opened packs keep for:
- Easy Plate AC, EC, CC, SA, EB, AC-R: 3 months
- Easy Plate YM-R: 1 month
After sample gelatinisation: if a gelled plate is to be used the following day, keep it refrigerated in a sealed condition and use it within 14 days.
Effects of improper storage: expired plates, or plates exposed to 40 ℃ for 10 days, darken noticeably and the sample no longer spreads evenly. See the Easy Plate Storage Condition guide for photo comparisons.









































Exportable Data and Reports for Regulatory Compliance


See how A3 technology finds what ATP technology can’t


