18 



The Bulletin. 



BAKING POWDERS. 



The aeration or leavening of breadstuffs by baking powders and 

 yeast was treated at length in the Food Reports of this Depart- 

 ment, published in 1902 and 1909. For information on the sub- 

 ject not found here, the reader is referred to those reports. 



The leavening of bread products, whether by yeast or baking 

 powder, is accomplished by an evolution through the mass of dough 

 of carbon-dioxide gas, which in escaping makes the bread light 

 and porous. 



Baking powders are composed of a carbonate and an acid salt, 

 and there are three classes in general use: tartrate powders, phos- 

 phate powders, and alum powders. The acid present in the first 

 is tartaric acid, the acid in the second is phosphoric acid, and 

 the acid in the third or alum powder is sulphuric acid. Carbon- 

 dioxide gas is evolved in the dough by the chemical reaction of 

 bicarbonate of soda with the cream of tartar, acid phosphate, alum, 

 or other chemical, and leaves in the dough the non-volatile product 

 of the reaction, consisting partly or wholly of mineral matter. 



RESULTS OF THE EXAM- 



1^ S 



Material and Brand 

 from Label. 



Manufacturer or Wholesaler. 



Retail Dealer or Party Who 

 Sent Sample for Analysis. 



The C. F. Ware Coffee Co., Dayton,' 

 Ohio. 



8169 Baking Powder, Gold 



Medal. 



8170 Baking Powder, King 



Kotton. 



8171 Baking Powder, Mascot . 



8172 Baking Powder, Sweet- 



heart. 



8173 Baking Powder, Rex 



8174 Baking Powder, Cascade 



8175 Baking Powder, Mascot . 



8176 Baking Powder, Gattons 



Pride. 



8177 Baking Powder, Luxury. 



8178 Baking Powder, Daily 



Bread. 



8179 Baking Powder, Don- 



nell's. 



8180 Baking Powder. Gold 



Medal. 



8181 Baking Powder, South- 



ern. 



8182 Baking Powder Kenton Baking Powder Co. .Cin- 



cinnati, Ohio. 



8183 Baking Powder, Ferndell Sprague-Warner Co., Chicago, Ul.. 



The C. F. Ware Coffee Co., Day- 

 ton, Ohio. 

 Southern Soda Works, Nashville, 



Tenn. 

 J. D. & R. S. Christian, Richmond, 



Va. 

 American Pure Food Co., St. Louis, 



Mo. 

 The C. F. Ware Coffee Co., Dayton, 



Ohio. 

 Consumer's Grocery Co., Roanoke, 



Va. 

 The C. F. Ware Coffee Co., Dayton, 



Ohio. 

 The Heekin Spice Co., Cincinnati, 



Ohio. 

 Donnell Mfg. Co.. St. Louis. Mo... 



The C. F. Ware Coffee Co.. Dayton, 

 Ohio. 



Surles & Co., Dunn 



M. L. McRae, Maxton 



A. H. Caldwell, Charlotte 



M. B. McDaniel, Rutherfordton 



W. A. Mauney & Bro.. Kings Moun- 

 tain. 

 Kiser & Mauney, Kings Mountain. 



J. L. Miller, Concord 



L. R. Wlnecoff, Salisbury... 



W. H. Moffitt. Lexington.. 



8266 Baking Powder. Snow 

 ! King. 



Kenton Baking Powder Co., Cin- 

 I cinnati. Ohio. 



Buckingham & Co., Fayetteville.. 



C. G. Stephens. Lumberton 



McLaurin & Shaw, Laurinburg 



J. A. Cecil, High Point 



V. W. Idol. High Point 



