A colony counter helps microbiology teams move from manual plate reading to faster, more consistent results across research, clinical, food, and environmental workflows. This category sits within lab testing instruments for the Laboratory sector, while also supporting sample enumeration workflows in Life Science and Diagnostics environments with solutions from Labfriend for laboratories where reliable colony counts and efficient reporting matter.
Colony counter
Colony Counter Solutions for Microbiology QC and Plate Reading
With only a small number of specialised products in this range, the buying focus should stay on application fit rather than broad feature comparison. John Morris Group supports laboratories that need anything from assisted visual counting with a magnifying arm through to automated Interscience systems for high-throughput plate assessment across Environmental, Food and Feed, and Life Science and Diagnostics workflows.
- Manual versus automated counting: Choose assisted viewing when throughput is low and visual confirmation is the main priority, or move to automated counting where repeatability, image capture, and faster turnaround are required.
- Plate and media compatibility: Check the formats you need to read, including standard round Petri dishes, spiral plates, membrane filtration samples, and compact dry media used in routine microbiology programs.
- Traceability and reporting: Automated colony counter platforms are better suited where saved images, exported results, and consistent counting rules are needed for QA review and internal documentation.
How to Choose the Right Colony Counter
Selecting the right colony counter depends on how your laboratory runs plate-based microbiology and how often results need to be reviewed, shared, or audited.
- Sample throughput: For occasional plate counts, a simpler visual setup may be sufficient. For busy laboratories, automated systems can reduce operator time and improve turnaround.
- Counting sensitivity: Review minimum colony size detection, image quality, and whether the system can reliably read faint, crowded, or chromogenic colonies used in your workflow.
- Data handling needs: If your lab requires stored images, exported counts, or stronger record control, prioritise a colony counter with integrated software and reporting capability.
Build a More Efficient Microbiology Workflow
Colony counting usually sits near the end of the culture workflow, so adjacent categories should support plate preparation, incubation, and controlled handling.
- Petri plates or dishes: Suitable plate selection is essential for consistent inoculation, incubation, and readable colony development.
- Biological safety cabinet: For laboratories handling viable cultures, controlled workspace protection can support safer plating and post-incubation handling.
Service, Support, and Ongoing Equipment Care
Established in 1952, John Morris Group supports Australian laboratories with ISO 9001 certified operations, factory-trained engineers, and local technical guidance for critical microbiology equipment. Whether you are specifying a first colony counter or upgrading to automated plate reading, our team can help with selection, application fit, and after-sales support. Contact us on 1300 501 555.
Frequently Asked Questions
What is a colony counter?
A colony counter is a laboratory instrument used to count microbial colonies grown on agar plates or related media. It helps laboratories improve counting consistency and document microbiological results more efficiently.
How do you use a colony counter?
You place the incubated plate on the counting area, adjust illumination or imaging settings, and then count manually or let the system detect colonies automatically. The best setup depends on colony size, plate type, and the level of traceability your workflow requires.
Can John Morris Group help with automated colony counter selection and support?
Yes. We can help assess throughput, media compatibility, reporting requirements, and workflow fit to guide you toward the right colony counter configuration for your laboratory.