wheat logistics
 
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Wheat: Cleanliness and Logistics

flour mill Shanxi province
Wheat flour mill, Shanxi province, China. photo by S. Willis.

Most Kansas wheat is shipped from ports in Texas via the Gulf of Mexico. About 58 percent of all U.S. wheat exports goes through those and other Gulf ports, about 35 percent goes through the Pacific Northwest, and smaller amounts leave by rail or via the Great Lakes or Atlantic ports.

Gulf ports traditionally serve markets in Africa, South America, and other points east and south, and Pacific Northwest ports serve East Asian markets. This is mostly a matter of proximity and economics: Those ports that are closer to the markets they serve are the cheapest point to ship from. It costs $20 to $25 a metric ton less to ship to Asia from the Pacific Northwest than it does from the Gulf of Mexico, meaning a million-dollar or more savings on every 50,000-ton shipment (Dickerson).

The final destination of Kansas wheat — and 50 percent to 60 percent of it goes overseas, with the rest used domestically — is often based on where it is grown in the state. Virtually all wheat is shipped by rail, and rail lines in much of Kansas flow south like rivers to the Gulf of Mexico. An exception is in northwest Kansas where wheat can flow by rail to either Gulf ports or ones in the Pacific Northwest. The flexibility in shipping in northwest Kansas is especially important because the region grows much of the hard white winter wheat highly desired in Asian markets (Interview, John Oades).

Where wheat is grown is not the only factor in where Kansas wheat will end up. The cleanliness of the grain itself is a very important factor to Asian countries. Japan, in particular, through its wheat-buying Japan Food Agency, has demanded the United States “clean up” its wheat. The main measure of wheat “cleanliness” is the amount of dockage, foreign matter that can be removed using mechanical separators. Dockage includes chaff, seeds from other plants, straw, stones, and other material.

Japan, South Korea, and Taiwan have, over the past decade, instituted more stringent requirements on how much dockage they’ll allow. Wheat that exceeds the maximum amount is either not bought by those nations or brings a lower price. For Japan and South Korea, the maximum allowance is now 0.3 percent; for Taiwan, 0.4 percent (U.S. Wheat Associates).

Australia and Canada, where monopolies buy and sell wheat and control exports, have long used their wheat’s cleanliness as a selling point. For example, Australian wheat to Japan averages about 0.2 percent dockage and Canadian wheat about 0.15 percent (California Wheat Commission).

To remain competitive and retain Asian customers, exporters in the Pacific Northwest have installed costly machinery to clean wheat. But shippers in the Gulf of Mexico haven’t invested in wheat-cleaning machinery.
“China, Japan, and Korea are as particular buyers as there are,” said David Frey, administrator of the Kansas Wheat Commission. “We can’t match the Pacific Northwest for cleanliness. The main reason they’re cleaning that wheat is because of Japan.”

“The Gulf exporters have not felt they can get an economic return on building cleaners,” said John Oades, director of the West Coast Office of U.S. Wheat Associates in Portland, Oregon. “Most of these operations up here put $5 million to $6 million into putting in a cleaner.” Gulf Coast shippers “doubt they can get a return. Those elevators are much more involved in shipping corn and soybeans. The Pacific Northwest elevators are almost exclusively involved in wheat,” he said (Interview, John Oades).

Without cleaning, wheat shipped from the Gulf has dockage of 0.6 percent or 0.7 percent, making it less attractive to big Asian markets. That’s a major reason why Japan, which once bought much of its wheat through Gulf ports, now buys little there.

 

Next: Future Wheat Exports