Cornmeal is a meal (coarse flour) ground from dried maize (corn).
If the more coarse flour travels farther, this might be a good explanation.
It is made of comparatively coarse flour and hence more nutritious than if made with fine flour.
In the extrusion process, raw materials are first ground to the correct particle size, usually the consistency of coarse flour.
Cattle are also fed oats, either whole, or ground into a coarse flour using a roller mill, burr mill, or hammer mill.
The coarser flour is sent back to the grinding unit until it is ground fine enough to be whole oat flour.
Other women brought grain in baskets and took away the coarse flour.
In the Andes region, it is made into fried chips, biscuits, and coarse flour.
If we control the bean crop -and maybe coarse flour as well- the Bureau of Military Procurement won't have any choice.
They also gathered acorns from oak trees and ground them for a coarse flour, from which they made a porridge called wiich.