A powder acid-sanding composition for confectionery products having partially neutralized polycarboxylic acid selected from malic acid, citric acid, fumaric acid, adipic acid, and mixtures thereof, and at least one of a sugar and sweetener. The partially neutralized polycarboxylic acid improves the stability in terms of acid migration into the candy and moisture uptake from the environment. Also, a method for acid-sanding of confectionery products using the powder acid-sanding composition, and the products obtained thereby. The obtained acid-sanded confectionery products have an improved shelf life and an immediately felt sour taste being of a constant strength at bringing it in the mouth and digesting it.
