The researchers studied how different methods of treating and cooking corn can reduce aflatoxin levels. They used sunlight, UV light, and water washing as pre-treatments on aflatoxin-contaminated corn, then cooked it in various ways like boiling, steaming, baking, and popping. They found that sunlight and UV light significantly decreased aflatoxin levels in the corn, with boiling being the most effective cooking method for reducing aflatoxin. This shows that treating and cooking contaminated corn can help lower aflatoxin levels, but more research is needed to further reduce it to safe levels.