We know from personal experience that testing for micro-toxins takes less than one week. When our boys became infected from eating Nutro and went into renal failure...I had no idea it was the food we gave them. I had an environmental hygienist come to our home and take samples. Looking for phenols, heavy metals and micro-toxins. He had suggested taking a sample of the royal canin dry food we leave out for the boys all the time. The goal was to look for a micro-toxin. We agreed at that time not to test the wet food...know we both wish we had. I did get the test results back in less than a week and to our surprise their was a low level of fumonisin B1 and B2 (which is a micro-toxin and carcinogenic). However, these levels are below the FDA requirements. We have sent our Nutro pouches to get tested as well and should have our results this coming Monday. Will keep everyone posted.