A series of sieves and screening to remove any particles, any foreign matter.
Soaking the maize kernel in a sulphur dioxide solution 50 degrees for around 32 hours to separate out cleanly.
As the process step suggest the germ is separated from the other parts of the corn.
Further separation and grinding. Screens are used to separate the fibre from the mixture.
The remaining slurry containing just the protein (gluten) and starch is called mill-starch.
Starch goes through several wash cycles. The supernatants are separated at each washing stage.
Co-Products account for around 34% of the wet-milled yield. In fact 23% of corn that is processed has a very low value.