P&P makes reliable analytical instruments for food safety and quality testing. Also supplying certiified calibration standards for milk composition analyzers and cryoscopes. LactiCheck Analyzers test for fat, protein, solids, lactose (raw and processed milk) Check for extraneous water (Freezing-Point Cryoscopes) in milk, moisture levels in cheese/yogurt (Halogen Infrared Moisture Analyzer) or see Somatic Cell Counts (automated image cytometry).