NIR in the Dairy Plant: Fat, Protein, and Lactose From Intake to Dispatch
How dairy plants use NIR from raw milk intake through standardization, spray drying, and powder QC — fat, protein, lactose, and moisture without waiting on the lab.
Liquid Dairy: Tanker Bay to Pasteurized Product
Powder Production: Evaporator to Finished Dairy Powder
Dairy NIR in Practice
Frequently Asked Questions
- How accurate is NIR for raw milk tanker testing compared to reference methods?
- NIR analyzers calibrated for raw milk typically achieve SEP of 0.05–0.10% for fat, 0.05–0.08% for protein, and 0.10–0.15% for total solids when validated against Gerber or Röse-Gottlieb (fat) and Kjeldahl (protein) reference methods. Accuracy is boun...
- What is the ROI for in-line NIR for milk standardization?
- The return on investment comes from precise, real-time control of fat and protein content — minimizing use of expensive components like cream and milk powder, preventing product giveaway, and ensuring consistent final product quality. By reducing rel...
- Can NIR reliably measure moisture in cheese at-line?
- Yes, NIR is well-established for rapid at-line determination of moisture, fat, and protein in cheese. Frequent checks during production let cheesemakers adjust press times to ensure final product meets moisture specifications. The instrument must be ...