Crave Brothers Farm highlights manure digester ahead of Earth Day

Tom Crave holds open the door to the side of the manure digester tank. The tank is warm to the touch at over 101 degrees, imitating a cow's stomach to further "digest" the manure. Image by Stephanie Hoff, April 2, 2021

A manure digester at Crave Brothers Farm in Waterloo produces electricity for the township and bedding for the cattle. It also reduces methane emissions.

Tom Crave says his family’s dairy farm is leading the way in sustainability by operating at 100 percent green power. Since adding a manure digester in 2006, the 2,200-cow farm is producing enough electricity for farm operations, Crave Brothers Farmstead Cheese and the roughly 300 homes in the township. 

Crave, the president-emeritus of the Dairy Business Association, said he thinks every farm has a role in protecting the environment...

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