Inspectors tested and discovered a harmful chemical in tainted sewer sludge from the Lapeer, Michigan waste water treatment plant, back in 2017. Those solids were used for fertilizer. Today, it’s still not an option.
There is a great misconception that once hay is "dry" and baled it is plain and devoid of life. The truth is that hay is never completely dry, and it is full of microscopic life. If the hay is not dry enough, those micr