This is the substitution recipe for Best Press that I use. I found it on the net somewhere, but to be honest, I'll stick to my starch, it goes farther and makes my fabric stiff.
2 cups distilled water,1/4 C Vodka. If you want it to be unscented, simply leave out the essential oil,6-12 drops of 100% pure essential oil, 1/3 cup of liquid starch. Shake well before each use.