Understanding NIR Ash Prediction: How It Works and When to Trust It Discover how NIR ash prediction works, its accuracy, and practical use in grain and feed industries. Learn when to trust NIR with SpectroScience insights. <p>Quality managers at grain elevators ask me this more than almost any other question: "Can I actually trust the ash number my NIR gives me?" It's a fair concern. Ash is different from moisture or protein — there's no direct chemical bond for NIR light to interact with, and that trips people up when they're trying to decide whether to act on a number or send a sample to the oven. Here's what you need to know before you stake a load acceptance decision on it.</p> <p>NIR spectroscopy measures how near-infrared light — in the 780 to 2500 nm wavelength range — is absorbed by your sample. Different molecular bonds absorb energy at different wavelengths, producing a spectrum that's essentially a fingerprint of the sample's composition. The instrument captures that fingerprint, and a calibration model translates it into numbers your QC team can act on.</p> <p>Field tip: Ensure your NIR spectrometer is calibrated regularly to maintain prediction accuracy.</p> <h2>How Does NIR Spectroscopy Work?</h2> <h2>What Is NIR Ash Prediction and How Is It Calculated?</h2> ← Back to NIR Spectroscopy Blog