. Bulletin of the Department of Agriculture. Agriculture; Agriculture. OP AN EGG B*RE \ Kl NG P] i 17. Cnanfc/'. £hs/?, Churr. The churn in which the yolks are broken and mixed with the whites preparatory to freezing is one of the most important pieces of appa- ratus in the breaking room. Much money has been spent in build- ing different kinds of churns, and the results often have been unsatisfactory. At present two types of churns are in use: One chills the eggs to nearly freezing during the churning process, and the other simply mixes the egg. In plants with ample refrigera-
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. OP AN EGG B*RE \ Kl NG P] i 17. Cnanfc/'. £hs/?, Churr. The churn in which the yolks are broken and mixed with the whites preparatory to freezing is one of the most important pieces of appa- ratus in the breaking room. Much money has been spent in build- ing different kinds of churns, and the results often have been unsatisfactory. At present two types of churns are in use: One chills the eggs to nearly freezing during the churning process, and the other simply mixes the egg. In plants with ample refrigera- tion for chilling the eggs before they are broken and for freezing the liquid egg promptly it is not necessary that the eggs be cooled during churning. If these facilities are not at hand, however, it is most important that the liquid egg be cooled thoroughly before leaving the breaking room. Holding the egg in a warm con- dition, even for a few hours, results in rapid multiplication of bac- teria. Refrigerated chum.— The type of refrigera- ted churn (Plate 1) which is being used more and more widely is a modified pasteuriz- ing machine that may be purchased from dairy supply houses. This machine has a rectangular insulated tank in which is suspended a motor-driven paddle consisting of a coil through which brine is cir- culated to chill the liquid egg. The yolks of the egg must be broken before being put into the tank. This may conveniently be done by passing them through a motor-driven, sanitary pump attachment, which may be purchased from firms selling dairy supplies. This Cf?ur. 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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