<human>:  What is the best way to clean a wool sweater?
<bot>: The best way to clean a wool sweater is to hand wash it in cold water using a mild detergent or wool-specific soap. Soak the sweater in the detergent solution for about 10 minutes and then gently agitate it for a few minutes. Rinse the sweater in cool water until the soap is gone, then squeeze the excess water from the garment and lay it flat to dry. Avoid wringing, twisting or excessive wringing while cleaning, as this can damage the fibers of the sweater.