Most people don’t realize that the U.S. has no regulated limits for mycotoxins in coffee, the toxic byproducts left behind by mold. By contrast, the EU sets strict limits of 3–5 µg/kg for roasted coffee. 
This means coffee containing mold residue ...
This coffee is so smooth! I can tell a real difference between this espresso and the Starbucks beans I was using prior. My machine would mold within a day with the leftover Starbucks grounds. Little did I know it contained mold! Has not happened once...