I used to spray starch as I assembled my blocks but it would gunk up my iron plus the over spray got the board cover so nasty to the point of transferring the burnt coloring back onto my fabrics if I had misted them with a spray bottle. So now I dip all my fabrics into starch I make up using the Vodka recipe but add more liquid starch to make it very stiff, hang them over the dish tub in my sink I have in the sewing room, then press them when dried. I added a large dowel over my sink so I can hang quite a few pieces of fabric on skirt hangers.