Indeed tests commissioned by a local TV station for a investigative report had a different outcome. The report by NTV indicated that three different brands, Jogoo, Jimbi and Heri, had unsafe levels of aflatoxin - at 13.8, 16.2 and 16.19 parts per billion (microgram per kilogram) respectively. Kebs considers amounts of more than 10 per billion in maize and other grains to be unsafe.