So the truck driver (usually someone working for the farmer or farming corporation but sometimes it is the farmer themselves if they have a smaller farm) will come to the ‘sample stand’ where we will take a small sample from their truck using probes that vacuum it out. We then run it through a machine that tells you the protein and moisture, (high protein and low moisture is ideal) and then do another test (can’t remember exactly what) to determine the grade.
The high grade wheat and barely is used to make flour for bread and pasta etc. or to make hops for beer and the low grade stuff is used for feed for livestock.