Using mild laundry detergent machine wash your linen shirt at 30 degrees with other similar fabrics (and colours) that need to be washed, on a delicate cycle. Note that if you are washing your linen shirt for the first time, because of the nature of linen it will slightly shrink. Let it run through a complete wash, spin and rinse cycle. Hang the shirt to dry on a wooden or padded hanger (a wire hanger will gradually deteriorate the shoulders). Before it has fully dried, turn the shirt inside out and iron on a hot or warm iron setting. Do not dry clean, bleach or tumble dry your linen shirt.