Corn Starch 1 Lb bags for thickening up sauce and gravies in your restaurant kitchens. Round Eye Supply offers premium quality corn starch 1 Lb bags. A viable alternative to paper bags and polyethylene bags, cornstarch bags are biodegradable. Made from the finest material, this cornstarch can be used for a long time. Corn starch can remove scorch marks from clothing.  If you move an iron around a bit too slowly you could end up with a scorch mark on your favourite shirt. If this happens, wet the scorched area and cover it with cornstarch. Allow the cornstarch to dry, then brush it away along with the scorch mark.