A proposed rule by the Food and Drug Administration could have a major impact on beer brewers and farmers in the area.
The FDA proposed the changes as part of the Food Safety Modernization Act, which was signed into law by President Barack Obama in 2011.
The regulations, which aim to prevent food safety issues in both human and animal feed, could require some breweries to go to great expense to process spent grains or byproducts of the brewing process.
At Wisconsin Brewing Company some 8,000 pounds of spent grains are generated each week, and they are given to the Gobel Family Farm of Belleville to feed to their 550 head of dairy cattle.
"Brewers have given spent grain to farmers because it's a very good source of animal feed and it works out very well," brewmaster Kirby Nelson said.