The flowability of food powders is a critical factor in their processing efficiency, product quality, and operational success. This review explores the intricate factors governing powder flowability, including particle size and distribution, particle shape, surface properties, moisture content, and storage conditions. Finer powders with increased interparticle cohesive forces exhibit poorer flowability, while irregular or elongated particles flow less readily than spherical ones. Surface properties influence interparticle friction, and moisture content significantly affects flowability by promoting liquid bridge formation. Storage temperature generally enhances powder flow due to reduced interparticle cohesive forces. Recent advancements in powder rheometers have improved the measurement of flow behavior under varying conditions, providing more detailed insights into how powders respond to external forces. The review also discusses the impact of moisture and water activity, particle size, surface composition, and storage and handling conditions on powder flowability. Understanding these factors is essential for optimizing food powder processing and handling, ensuring consistent product quality and efficient operations.The flowability of food powders is a critical factor in their processing efficiency, product quality, and operational success. This review explores the intricate factors governing powder flowability, including particle size and distribution, particle shape, surface properties, moisture content, and storage conditions. Finer powders with increased interparticle cohesive forces exhibit poorer flowability, while irregular or elongated particles flow less readily than spherical ones. Surface properties influence interparticle friction, and moisture content significantly affects flowability by promoting liquid bridge formation. Storage temperature generally enhances powder flow due to reduced interparticle cohesive forces. Recent advancements in powder rheometers have improved the measurement of flow behavior under varying conditions, providing more detailed insights into how powders respond to external forces. The review also discusses the impact of moisture and water activity, particle size, surface composition, and storage and handling conditions on powder flowability. Understanding these factors is essential for optimizing food powder processing and handling, ensuring consistent product quality and efficient operations.