Bran Tester: The Precise Eye for Wheat Flour Quality Detection

In the modern grain processing industry, the scientific evaluation of wheat flour processing accuracy is directly related to product quality and market competitiveness. As a professional testing instrument, the YP-FX Bran Tester (Wheat Flour Processing Accuracy Tester) provides a complete accuracy determination solution for flour manufacturing enterprises through advanced optical measurement and image analysis technology.

Is the operation process of the bran tester complicated? Core Technical Principle The bran tester adopts a simulated D65 standard light source lighting system to ensure consistent testing conditions at different times and locations. Precise sensors capture the reflected light signal on the sample surface and perform accurate calculations in the L*a*b international standard color space, realizing objective quantification of flour color. The system can control the repeatability error of color measurement within ΔEab ≤ 0.5, which is significantly better than the traditional manual color comparison method. For bran speck detection, the instrument is equipped with a high-resolution image acquisition system that can automatically identify bran speck particles in flour, and accurately calculate key parameters such as bran speck area ratio, number of bran specks per unit area, and maximum bran speck area. The instrument follows strict repeatability standards to ensure that the difference in bran content between two measurements of the same sample is less than 10% of the arithmetic mean. Practical Application Value This bran tester fully complies with the national standard GB/T 27628-2011 "Inspection of grain and oils - Determination of flour color and bran specks in wheat flour" and has passed the applicability verification of the Standard and Quality Center of the State Grain Administration. In actual production, enterprises can obtain stable and reliable testing data through this equipment, providing a scientific basis for process parameter optimization. By long-term monitoring of the changing trends of flour color, whiteness and bran content, production enterprises can timely detect deviations in the processing and guide the adjustment of mill roll gap and optimization of screening process. The built-in printing function facilitates the establishment of a complete quality file and realizes traceable management of product quality. The bran tester transforms traditional experience-dependent quality judgment into objective and quantitative testing data, helping flour processing enterprises improve product quality stability and enhance market competitiveness. The equipment has been widely used in grain processing enterprises, quality supervision institutions and scientific research institutes, becoming an indispensable technical equipment in the wheat flour quality control system.