The experimentally determined indexes for describing the flow of behavior of powder streams in industrial storage, transport, and processing operations are discussed. A better control of powder flow during manufacturing optimizes the quality of the product in terms of uniformity and efficiency. Flowability is important in several industrial processes in the ceramic industry, where flowability of a spray-dried or a granulated powder, in the step of mold filling, affects the green-body homogeneity velocity after compaction. Flowability is also important in dry-powder decoration, a technique that will become much more used in the future, where the reproducibility and the precision of the drawing are strictly dependent on powder flowability. .