I have this recipe to make sugar scrub cubes. 2 oz. M & P, 1 ounce almond oil, 1 ounce hemp oil, 6 ounces sugar. 9 ml emulsifying wax. Every recipie have seen regarding sugar scrub cubes doesn't add Emulsifying Wax and I am wondering why? I have made the cubes with and without the wax, and...