The “shrinkage” that happens when you wash wool issomething most people know about, but it isn’t reallyshrinking at all. It’s the fibers clinging together so tightlythe wool appears to have shrunken down. The other bigissue with washing wool is laundry detergent.Modern laundry detergents have enzymes that arespecifically designed to break down other biologicalmolecules. These enzymes do wonders for removing foodstains and what not, but they also break down themolecules of the wool. So if we have to wash woolitems, then it should be done in cold water with no agitation and detergent used should be designed for wool.