Turn the shirts inside out and fold the collar and cuffs inward to reduce friction on the edges.
You will get the best results by washing a maximum of six shirts at a time.
Spin at a maximum speed of 600 revolutions.
Immediately after washing, hang the shirts on hangers and stretch the collar, placket, and cuffs.
After drying in the tumble dryer, also hang the shirts on hangers as soon as the cycle ends and stretch them.