Red 40 Lake Adding â€œlakeâ€� after the name of a dye indicates that the dye is mixed with Aluminum Hydroxide. Aluminum hydroxide is safe as a food ingredient and often sold as an antacid. Mixing the Aluminum Hydroxide with Red 40 allows the manufacturer to color the surface of a solid and ensures that it will not run off easily if the product gets wet. See Red 40. FD&C Red Dye #40 Information, Education and Discussion. Web. 16 May 2011. . RED 40 ... Artificial coloring: Soda pop, candy, gelatin desserts, pastry, sausage. The most widely used food dye. While this is one of the most-tested food dyes, the key mouse tests were flawed and inconclusive. An FDA review committee acknowledged problems, but said evidence of harm was not "consistent" or "substantial." Like other dyes, Red 40 is used mainly in junk foods. Ref : Center for science in the public interest Banned in Denmark, Belgium, France, Germany, Switzerland, Sweden, Austria and Norway A lake is a solid, non water soluble form of a dye. It's produced by mixing the dye with Aluminum Hydroxide. By itself Aluminum Hydroxide is a safe food ingredient and it's often sold as an antacid. When combined with Dye, the chemicals form a deep powder that can be applied to the outsides of tablets, gumballs and other solids. You may also notice this form listed in the ingredients as "Aluminum Lake"