All wool blankets will shed a small amount. When buying, look out for products that promise to be shed free. To reduce shedding to acceptable amounts, you need to gently wash the blankets. Over time, the shedding should reduce to an acceptable amount. Another tip is to try running a sticky lint remover roller that will pick up loose fibers. In extreme cases, try an electric sweater shaver that should remove the top layer of shedding hairs.