. The book of cheese. Cheese. 48 THE BOOK OF CHEESE 68. Second day's propagation. — For the second day, the milk for the starter is selected as on the first day. It is pasteurized, and this time cooled to 70° F. The milk is cooled a trifle colder the second day than the first, because the organisms have become more active and hence do not require as high a temperature to grow. Instead of inoculating with powder, as was done the first day, the mother starter prepared the first day is used. This requires only a very small amount, perhaps a tablespoonful to a quart bottle. It should be thor- ough
. The book of cheese. Cheese. 48 THE BOOK OF CHEESE 68. Second day's propagation. — For the second day, the milk for the starter is selected as on the first day. It is pasteurized, and this time cooled to 70° F. The milk is cooled a trifle colder the second day than the first, because the organisms have become more active and hence do not require as high a temperature to grow. Instead of inoculating with powder, as was done the first day, the mother starter prepared the first day is used. This requires only a very small amount, perhaps a tablespoonful to a quart bottle. It should be thor- oughly mixed with the milk. This starter may have the flavor of the media used in the laboratory culture, therefore may need to be carried one or two days more to eliminate it. After the flavor has become nor- mal, the mother starter is ready for commercial use. 69. Preparation of larger amount of starter. — The first thing to determine is the quantity of starter re- quired. As much milk should be carefully chosen as the amount of starter desired. This milk should then be pasteurized. An improved starter-can (Fig. 6) may be used in the pas- teurization of the milk and the making of starter, or a milk-can (Fig. 7) placed in a tub of water in which there is a steam pipe. The former requires mechanical power to operate the agitator, but the latter can be used. Fig. 6. — An improved Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thom, Charles, 1872-1956; Fisk, W. W. (Walter Warner), b. 1888. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcheese, bookyear1918
