<human>:  What is the best way to wash a wool sweater?
<bot>: The best way to wash a wool sweater is to hand wash or machine wash in cold water on the gentle cycle. Use a mild detergent in the water and avoid harsh chemicals, bleach, and fabric softener. To rinse, use the same temperature water and gently press the sweater to remove excess water. Lay flat to dry and avoid wringing or twisting.