Analysis of fat, moisture, and salt is of great importance to plants manufacturing butter. Quick and accurate control of these constituents ensure product quality, help optimize processes and lead to significant savings for the producer. The Near Infrared Reflectance (NIR) technique is well-suited for measurement of butter, but past instrument limitations have not allowed users to reap the full benefits of NIR. This application brief demonstrates how PerkinElmer DA 7250 is ideally suited for easy and accurate analysis of butter in real time.