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Lab-Tested Mold-Free Coffee
What "Lab-Tested Mold-Free" Means
Coffee is an agricultural product. Like any crop, it passes through growing, harvesting, drying, storage, and shipping - each a stage where moisture and time can allow mold to develop. Testing is how a roaster establishes what is actually present in the coffee, rather than what is assumed.
When Café Nairobi describes its coffee as lab-tested mold-free, that phrase refers to a specific documented outcome: an independent laboratory measured the coffee for mold and yeast, and the result came back at 0 CFU/g.
Who Tests Our Coffee
Café Nairobi coffee is analyzed by Cambium Analytica, an independent laboratory accredited to ISO/IEC 17025:2017 (Accreditation #108157). ISO/IEC 17025 is the international standard for testing and calibration laboratories - accreditation to it means the lab's methods, equipment, and personnel have been assessed by an external body as technically competent.
Cambium Analytica has no commercial interest in the outcome of the analysis. That independence is what makes the result meaningful.
What the Coffee Is Tested For
The Certificate of Analysis covers several separate panels:
| Panel | What it measures |
|---|---|
| Total Yeast & Mold | Live yeast and mold colonies present in the sample, measured in CFU/g |
| Aflatoxins | Aflatoxin B1, B2, G1, G2, and Ochratoxin A — mycotoxins that can be produced by certain molds |
| Pesticides | A broad USP <561> pesticide panel, by both GC/TQ and LC/TQ methods |
| Heavy Metals | Arsenic, cadmium, lead, and mercury |
| Total Aerobic Bacteria | General microbial count |
Reading the Results
Two terms appear throughout a Certificate of Analysis and are worth understanding:
CFU/g stands for colony-forming units per gram - a count of viable organisms in a sample. A result of 0 CFU/g means no colonies were detected at the laboratory's limit of detection.
ND stands for "not detected" - the analyte was not found at or above the laboratory's detection limit. Every detection limit is printed on the report itself, which is why reading the full document matters more than reading a summary of it.
In the results reviewed, total yeast and mold were reported at 0 CFU/g, and the tested aflatoxins were not detected.
Why We Publish the Full Report
A claim is only as good as the evidence behind it. Rather than referring to testing in general terms, Café Nairobi makes the complete Certificate of Analysis available, including the analyte list, the detection limits, the methods used, and the laboratory's signatures and accreditation details.
You can read the document in full and check the figures yourself.
View the Complete Certificate of Analysis →
Explore the Coffee
Every Café Nairobi roast comes from the same single-origin Kenyan Arabica covered by our testing programme.
- Medium Roast - balanced, chocolate and caramel, our most popular cup
- Light Roast - bright citrus and jasmine
- Dark Roast - bold, dark chocolate and smoky molasses
- Shop all coffee →
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