Crystal Colors Powder Colour & Dusting Powder - Slate U.S.-certified powder from renowned cake-decorating instructor Elizabeth Parvu of Crystal Colors LLC Sold by the jar, each jar weighing 0.5 ounce gross Certified kosher by the Chicago Rabbinical Council Elizabeth Parvu is the owner of Sugarpaste, LLC, and co-owns Crystal Colors LLC with her husband Ronald. Elizabeth is recognized around the world for her sugar flowers and award-winning cake designs. She has been published numerous times in American Cake Decorating Magazine and Cake & Craft Decoration Magazine (England) Elizabeth is International Cake Exploration Societe demonstrator and approved scholarship teacher, and has demonstrated for years for the Ices Annual Convention. Elizabeth has demonstrated for the Southeast Regional Convention for the American Culinary Federation held in Nashville, Tennessee. She has taught for Walter State Community College in Sevierville, Tennessee. Elizabeth is an adjunct professor for Anne Arundel Community College in Baltimore, Maryland for their culinary division