If the grain is sold, there may be a reduced price due to mold damage. Testing for mycotoxins can be done before putting the grain in storage. The best sampling method is to take a composite sample of at least 10 lb from a moving grain stream, or to take multiple probes in a grain cart or truck for a composite 10-lb sample. If toxins are already present, storage is not a good option. Corn that is moldy going into storage will definitely not store well.
Toxins can only stay the same or increase.
Cleaning the grain will remove fine particles that are usually the moldiest and most susceptible to further mold development. Aspergillus Aspergillus ear rot and storage mold. Aspergillus flavus and A. parasiticus can produce aflatoxins. They are generally known as storage fungi, but they also can cause ear rots in the field. Aspergillus is a gray-green, powdery mold.