I use vodka and water spray to remove stubborn wrinkles from fabric. It works great. There is no potato starch in vodka made with potatoes. The distilled process removes all starch from the vodka. Buy the cheap vodka mix with 3 parts water, one part vodka. Sta Flo is not made anymore. So I switched to Terial spray. I mix it with water for the stiffness I need. From paper stiffness to ironing spray crisp.