Abstract: The invention relates to a process for the production of ?-L-aspartyl-L-phenylalanine methyl ester (APM) powder wherein the upper limit of the particle size distribution (p.s.d.) of the powder, expressed as the d99, is controllable, wherein an APM starting material, comprising at least 5 wt % of APM particles larger than the d99 of the APM powder to be obtained, is subjected to treatment in at least one roller mill, each such roller mill comprising at least one roller pair, each roller pair consisting of two smooth rollers of which at least one is rotating such that the APM starting material, or APM intermediate powder for any second or further roller mill, is transported into the roller gap of said roller mill. The invention also relates to an APM powder with a d99 of <500 ?m produced by the process according to the invention and the use of said APM powder for the production of tablets by direct compression.

Abstract: The invention relates to dry foodstuffs with <10% by wt moisture, containing dipeptide sweetener and optionally a component that is reactive with it, both in a sugar-free and in a sugar-containing form. The invention relates especially to products which also contain flavourings based on aldehydes. With the invention dry foodstuffs are produced with improved sweetness stability and storage stability and improved flavour when the dipeptide sweetener is a sweetening salt of an aspartic-acid-derived dipeptide sweetener and a derivative of a sweetening acid. The particle size of the sweetening salt is preferably smaller than 200 &mgr;m. The invention also relates to processes for production of such dry foodstuffs using the dipeptide sweetener substantially in solid, dry form.