Condensed Miek and Miek Powder 197 



PART VIII 



TESTS AND ANALYSES OF MILK, GONDENSED 

 MILK AND MILK POWDER 



CHAPTER XXIX 



PRACTICAL METHODS OF SYSTEMATIC EXAMINATION 

 OF PRODUCT FOR MARKETABLE PROPERTIES 



The manufacturer should know at all times the quality and 

 keeping quality of his product. He should have a systematic check, 

 not only on his product stored in the factory, but also on the goods 

 in transit and on the market, in order to promptly detect goods that 

 show signs of deterioration. This will enable him to investigate the 

 cause of the defect, to prevent its recurrence and to avoid spoiled 

 goods from reaching the consumer. The following simple method 

 of systematic examination has been found effective in keeping a 

 reliable check on each batch until the product is old enough to have 

 proved its immunity from the usual specific defects. 



Number of Samples Needed. — Five cans of every batch of 

 condensed milk or evaporated milk, bearing the corresponding batch 

 number, are reserved for this purpose. For convenience's sake these 

 sample cans are best stored on shelves about fifteen inches wide and 

 five inches apart. These dimensions are sufficient to conveniently 

 accommodate five 16-ounce cans of one and the same batch and 

 placed in a row, one behind the other. These shelves should be in- 

 stalled in a place, preferably the office, where the cans may be ex- 

 posed to similar changes and extremes of temperature, as is the case 

 in transit and in the retail store. The cans of sweetened condensed 

 milk should be placed on these shelves bottom-side up. The cans 

 of evaporated milk should be placed on the shelves right-side up. 



