Why They Are Not Pure

The absolute purity of the Royal Baking Powder is a fact not questioned by anyone ; but the questions are frequently asked: Why do not other manufacturera, also, put up pure baking powders, free from lime, aluni, and other adulterants? Ia it a fact that the Royal is the only pure baking powder made ? There are three classes of these articles: Cream of tartar baking powders, made from cream of tartar and bi-carbonate of soda; phosphate baking powders, in which phosphatic acid is used aa a substituto for cream of tartar; and alum baking powders, made from burnt alum and soda. Burnt alum baking powders are of the cheapest class. They cost less than four cents pound, are concededly poisonous, and because of their well-known inferiority are never sold under their true colors. Baking powders sold with a prize or gift are of this class. The phosphate baking powders contain from 8 to 12 per cent. of lime, which ia an ingrediënt of the phosphate used in them as a substituto for cream of tartar. It is impossible to eradicate the lime from this class of powders. This baking powder is next to the alum baking powders in cost. The cream of tartar baking powders, to which class the Royal belongs, to be pure must be made from absolutely pure cream of tartar. The Royal Baking Powder ia made from cream of tartar specially refined and prepared for its use by patent processes by which the tartrate of lime is totally eliminated. There is no other process by which cream of tartar can be freed from lime- made 100 per cent. pure - in quantities practical for commercial purposes. Other baking powder makers, not being able to obtain these chemically pure goods (which are used exclusively in the Royal) are dependent upon the cream of tartar of the market, refined by the old-fashioned methods, for their supply, and by those methods it is impossible to eliminate the lime and other impurities. These are the reasons why the Royal is absolutely pure, while all other baking powders contain either lime or alum. The vital importance of absolute purity in the articles we eat as promotive of perfect health is daily more generally being considered. How large a share in producing impura and unwholesome food the lime and alum baking powdera have had in the past, is becoming fully recognized. The absolute purity of th Royal Baking Powder not only renders it more perfectly wholenorae, but its freedom from all extraneous substances makes it of higher strength and effectiveness at a leavening agent, and therefore more economical for use. It is accordingly certified by the U. S. Government Chemista as the most wholesome, effective, and perfeo baking powder mado.