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Coffee beans, like many other agricultural crops and foods (oats, corn, peanuts, rice, wheat, cocoa, grapes etc.) are susceptible to contamination with mold. While some molds are harmless, others can produce substances called mycotoxins, such as ochratoxin A (OTA) and aflatoxin B1, which can be harmful. However, amounts of molds found in roasted and brewed coffees do not appear to pose a health risk. In fact, you may be exposed to more of these mycotoxins from eating other common foods. See the full answer >>

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