Woolmark's sweater guidance starts by checking that the care claim permits machine washing. It then describes turning the sweater inside out or using a laundry bag, adding an appropriate wool detergent and selecting a suitable cycle. Those steps apply after permission has been established, rather than replacing the label.

Use a Sweater's Washing and Drying Instructions Together

Drying needs its own attention. The reference distinguishes knitted items such as sweaters, which should be flat dried in the shade, from certain woven garments that can be placed on suitable hangers. Keep the garment's construction in mind when reading its instructions instead of treating all wool clothing as one interchangeable laundry load.