Issued January 29, 1910. 



UNITED STATES DEPARTMENT OF AGRICULTURE. 



BUREAU OF CHEMISTRY Circular No. 48. 



H. W. WILEY, Chief of Bureau. 



THE COLD STORAGE OF APPLE CIDER. 



By H. C. GORE. 



INTRODUCTION . 



This report gives the results of the first season's work on the 

 cold storage of apple cider. It is hoped that these investigations 

 may later become the basis of definite recommendations for com- 

 mercial practice. The plan of the work has been to prepare cider 

 in the laboratory, cool quickly to C. (32 F.), then store at C., 

 and examine from time to time during storage. 



Mr. W. A. Taylor, pomologist in charge of field investigations, 

 Bureau of Plant Industry, has cooperated in suggesting the varieties 

 of apples used and in selecting the localities from which the fruit 

 was obtained, with a view to giving the results a wide application. 

 Mr. Taylor, Mr. George C. Husmann, and Mr. W. N. Irwin, of the 

 Bureau of Plant Industry, have also furnished valuable organoleptic 

 notes on the ciders at intervals during storage. 



THE FRUIT USED FOR THE EXPERIMENT. 



The fruit purchased was of the grade commercially known as 

 "seconds." Upon delivery at Washington it was stored in a ware- 

 house in a room kept at 32 F., as it was not practicable to begin 

 the experiments when the apples were received. Considerable decay 

 occurred during cold storage in the case of the first five varieties of 

 apples mentioned in Table I. This was to be expected, because the 

 apples were not of the first grade; but very little decay was found 

 among the last four varieties mentioned. 



The following facts should be noted in connection with the com- 

 position of the juices as given in the table. The content of sugars 

 is probably higher than if the apples had been ground as soon as 

 received. This is particularly true of the three late winter varieties, 

 Baldwin, Golden Russet, and Roxbury Russet, on account of the 

 well-known fact that most fall and winter apples contain starch at 

 12580 Cir. 4810 



