Tested Labs routinely tests for Aflatoxins and Ochratoxin in cannabis plants. Aflatoxin, a toxin from a naturally occurring mold, that is a commonly known carcinogen to cause cancer in humans. Alfatoxin B1, B2, G1, G2 should be tested to ensure the safety of your medicine. Ochratoxin is a mycotoxin produced by the fungus Aspergillus ochraceous and also by several species of Penicillium fungi. Ochratoxins are harmful to our health and should be strongly considered when testing your products.