. Condensed milk and milk powder, prepared for the use of milk condenseries, dairy students and pure food departments. Condensed milk. 114 Evaporated Milk—Cooling Chapter X. COOLING In the cooling of the evaporated milk, no attention need be paid to sugar crystallization. In this class of goods there is plenty of v^^ater to keep the milk sugar in ready solution. The evaporated milk can, therefore, be cooled as rapidly as facilities permit. The cooling may be accomplished in similar ways as are used for cooling fresh milk. From the homogenizer the evaporated milk is run over a surface cooler, o
. Condensed milk and milk powder, prepared for the use of milk condenseries, dairy students and pure food departments. Condensed milk. 114 Evaporated Milk—Cooling Chapter X. COOLING In the cooling of the evaporated milk, no attention need be paid to sugar crystallization. In this class of goods there is plenty of v^^ater to keep the milk sugar in ready solution. The evaporated milk can, therefore, be cooled as rapidly as facilities permit. The cooling may be accomplished in similar ways as are used for cooling fresh milk. From the homogenizer the evaporated milk is run over a surface cooler, or cooling coil. It is advisable to cover the coils with a jacket of gal- vanized iron, tin or copper, so as to avoid undue contamination of the milk from dust, flies, and other undesirable agents. In some condens- eries the hot evap- orated milk is forced through double pipes, cold water passing between the inner and outer pipe, or the coils through which the milk passes are submerged in a tank of cold water. The only objection to this system is that the pipes are more difficult to clean than in the case of an open surface cooler. Where this system is used, the pipes should be equipped with sanitary fit- tings so that they can be readily swabbed out from both ends. In other factories, the same cooling equipment is used as for sweetened condensed milk, with the exception that cold water is run into the cooling tank at once. In still other factories the cooling is done in vats or tanks by means of revolving coils which carry the cooling medium. If the evaporated milk is not. Fig. 40. Surface cooler for evaporated milk Courtesy of Davis-Watkins Dairymen's Supply 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 Hunziker, Otto Frederick, b. 1873. La Fayette, Ind. , The author
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