524 MANUAL OF MILK PRODUCTS 



palatable to most consumers if it contains more than 0.30 per 

 cent to 0.32 per cent. Cream of this quality may occasionally 

 be used, especially if partially neutralized and then mixed 

 with some sweet cream and frozen for immediate consumption, 

 or if it is mixed in small amounts with sweet cream. 

 Pasteurized cream. 



The pasteurization of sweet cream improves its keeping 

 qualities and general market value ; but it decreases its apparent 

 value and causes it to seem to be of less value than it really is, 

 because of the lowered viscosity resulting from the employment 

 of the process. This peculiar and well-recognized effect is ap- 

 parently due to the impairment of the clustering together tend- 

 ency of the fat globules. The process in no wise affects the 

 food value of the cream and it enhances its service for many 

 purposes; but it decidedly affects its appearance. Viscogen 

 (sucrate of lime) has been used to reestablish the viscosity of 

 pasteurized cream. 1 While it is effective to this end, it is not 

 a sufficiently active agent to warrant its regular use in ice cream 

 making, for the reason that the lapse of time and the employ- 

 ment of a low temperature bring about in pasteurized cream an 

 essential return of its original viscosity. If pasteurized cream 

 was allowed to stand cold for twenty-four hours after pas- 

 teurization, it yielded as large a volume of as good bodied an 

 ice cream as was that produced by the raw check lot, kept 

 under similar temperature conditions for the same length of 

 time. Hence pasteurized cream may be freely and successfully 

 used in ice cream making, if it is allowed time to reestablish 

 its viscosity. 

 Homogenized cream. 



A homogenized cream is one which has been made homo- 

 geneous or identical throughout its entire mass by having been 

 passed through a special apparatus which, under pressure of 



1 Its use is illegal in several states and is to be decried under all 

 circumstances unless its presence is declared to the consumer. 



