To keep your flannel shirts or blouses soft and cuddly for longer and prevent them from becoming rough or hard, wash them inside out on a gentle cycle at a maximum of 30°C. Use a mild, liquid detergent. Avoid fabric softener, as it will clump the fibers together over time, causing the fabric to lose its fluffy texture. It's best to dry flannel by hanging it in the air or laying it flat on a towel—this prevents wrinkles and usually eliminates the need for ironing.