We believe you deserve to know exactly what's in your cup. That's why every lot we source goes through third-party laboratory testing before it reaches you. This month, we're sharing the full results for our Arabica Yellow Catuaí from Fazenda Santana in Serra Negra, São Paulo — and the news is as clean as the coffee tastes.
Testing was conducted by Cambium Analytica, an ISO/IEC 17025:2017 accredited lab based in Traverse City, Michigan. The certificate covers four panels: aflatoxins, two rounds of pesticide screening, and yeast & mold. Here's what they found.
Why Aflatoxins Matter
Aflatoxins are naturally occurring mold toxins produced by Aspergillus fungi. They're a real and well-documented concern in agricultural commodities — including coffee — particularly in regions with high humidity or inadequate post-harvest drying. Ochratoxin A, another mycotoxin included in our panel, has been found in coffee grown and processed under sub-optimal conditions worldwide.
The World Health Organization classifies Aflatoxin B1 as a Group 1 carcinogen. That's not a fact designed to alarm — it's the reason we test.
The result
Aflatoxin B1, B2, G1, G2, and Ochratoxin A all came back Not Detected — below the lab's own detection threshold of 0.001 µg/g. That is the best possible outcome. There is nothing to find here.
Pesticide-Free Across 80+ Compounds
Our pesticide screening used two complementary analytical methods — Gas Chromatography (GC/TQ) and Liquid Chromatography (LC/TQ) — each targeting different classes of compounds. Together they cover organochlorines, organophosphates, pyrethroids, fungicides, and more.
Every single analyte returned Not Detected. Every calculated total — DDTs, Endosulfans, Chlordanes, Pyrethrins — reads 0.000 µg/g. All passing their respective action limits with substantial margin.
"Zero pesticide residues detected across more than eighty compounds. For a coffee grown in Brazil, one of the world's largest coffee-producing nations, that's a result worth celebrating."
What This Means for You
When we source a coffee, we're making a promise — not just about how it tastes, but about what it contains. Third-party lab testing is how we keep that promise honest. The results aren't reviewed by us; they're certified by independent scientists at an accredited facility.
The Arabica Yellow Catuaí from Fazenda Santana is grown at altitude in Serra Negra, São Paulo — a region known for its cool nights and distinct terroir. The farm's careful post-harvest practices are part of why this coffee cleans up so well in testing. Good farming and clean results aren't a coincidence.
We'll continue publishing certificates of analysis for every lot we bring in. Because transparency isn't a marketing strategy. It's just the right thing to do.