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Where coffee purity risk actually comes from
Coffee is an agricultural product, not a sacred object. The purity question is soil, storage, processing, testing, and honesty.
Soil and origin
Heavy metals such as lead, cadmium, arsenic, and mercury can reflect soil and environmental exposure. Origin transparency matters because geography is part of the risk map.
Storage and mold
Mycotoxin risk is shaped before the beans hit your grinder: harvesting, drying, storage, shipping, and humidity control all matter.
Processing and decaf
Washed/natural processing, decaf solvents, and handling standards can all change the buyer question. Disclosure is the minimum standard.
Marketing distortion
The biggest contaminant in clean coffee is often the claim itself: “toxin free” without a COA, lab, batch, and numeric result.