Abstract
The Foss Milkotester Mark III was evaluated as an alternative method to Babcock for payment of farm separated creams. This instrument was chosen because of its built-in dilution capability to simplify sample preparation, i.e., to dilute creams to fat percents common in milks. Processed sweet creams inoculated with lactic acid cultures initially were tested to assess any effect of acidity on the results. Results were low for acidic creams, but this phenomenon was not the direct result of low pH but rather was due to gas formation and corresponding displacement of fat by gas. This effect was not significant for farm separated creams because heating, generally to 60°C, was required for uniform sample consistency. In all cases, the Milkotester Mark III was as accurate as the Babcock method for analysis for fat in cream, and calibration held for a substantial time. The Mark III is recommended as a simple, clean, and generally rapid method of analyzing farm separated creams for payment.
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