Abstract: A device for measuring and dispensing predetermined volumes of dry powdered or dry granular materials, and methods for using the device are disclosed. The device comprises: a rotatable cap, a rotatable measuring cylinder, a rotatable cylindrical fill ring; and a base cylinder, such that the rotatable cap, the rotatable measuring cylinder, the rotatable cylindrical fill ring; and the base cylinder are mechanically or physically attached or joined, while preserving their operational, rotatable, releasable, or stationary functionality. A rotatable leaf partition and a blocker form a measuring volume between them within a predetermined volume from ¼ teaspoon (tsp.), ½ tsp, 1 tsp, or 1 tablespoon (tbsp.). A minimum measuring volume may be formed in a hollow cylindrical measuring compartment by creating a cavity that provides reproducible measurement of the granules or powders within +/?10% by volume.