mikrofein
Mikrofein is a German term used to describe powders or textures with extremely small particle sizes, typically finer than standard fine grades in a given product category. The word combines mikro- (prefix meaning very small) with fein (fine). In commerce, mikrofein is often used as a descriptive label on consumer products such as flour, sugar, coffee, spices, cosmetics, detergents, and abrasive materials, to signal a smoother texture or more uniform particle distribution. It is not a precise scientific term and its exact particle size range varies by industry, manufacturer, and national standards.
Particle-size measurement methods include sieving, laser diffraction, and dynamic light scattering, and definitions of mikrofein are
In food and feed, mikrofein flour or sugar may affect mouthfeel, dissolution rate, and mixing behavior, but
Overall, mikrofein serves as a general descriptor for ultra-fine particle texture rather than a fixed specification.