Abstract: An un-sterilized liquid concentrate sweetener composition containing 3-35% sucralose, at least one stabilizing additive having a pH of about 2.5 to 7.5 in the presence of a solvent in the concentrate sweetener, and one or more of the following ingredients: (A) mixed buffer with acid component being first edible acid and base component being salt of second acid with dissociation constant different than first acid to cover a range of pH from 4 to 6.5, (B) polymer stabilizer or hydrocollide stabilizer, (C) at least one osmoticum added to saturate water available for microbial growth in the composition and thereby check microbial growth, the water being added as an ingredient or the moisture may enter as ambient in the composition in course of reuse, and the osmoticum being an ingredient soluble in water and generates osmotic pressure in solution, (D) a preservative and (E) an antibiotic.