This disclosure relates to sweetening compositions that include (1) at least a sweetener selected from the group consisting of sucralose, acesulfame potassium, saccharin, aspartame, a stevia extract, neotame, cyclamate, a Luo Han Guo extract, a polyol, and a mixture thereof; (2) at least a preservative selected from the group consisting of potassium sorbate, sodium sorbate, sodium benzoate, potassium benzoate, methyl gallate, propyl gallate, sodium ethylenediaminetetraacetate, methyl paraben, propyl paraben, and a mixture thereof; and (3) at least an acid selected from the group consisting of citric acid, succinic acid, lactic acid, propionic acid, tartaric acid, tannic acid, phosphoric acid, adipic acid, malic acid, acetic acid, gluconic acid, ascorbic acid, and a mixture thereof.