My daughter is studying to be a nurse practitioner. Tomorrow she starts clinicals and has to wear a lab coat. She asked me to iron it because she said she had no clue how to do it. (I did teach this girl, 34, to iron!). The fabric was very heavy cotton, almost like khaki or twill. It reminded me of ironing my dad's shirts. When I was about 10 he decided my sister and I needed to learn how to starch and iron his white shirts. So my mom washed them in the wringer washer, put them in the starch bucket, rolled them up and put them in the refrigerator. Then after a couple of days we used the sprinkler bottle, a soda bottle with a sprinkler top. We would then dampen the shirt and iron it. They were hard to iron, getting all the wrinkles out, took forever! and my dad inspected them to make sure they were done right.