The present invention relates to a reconstitutable acidic beverage formulation comprising at least 10 wt.% of soy protein-based particles, said soy protein-based particles containing: • 15-70 wt.% soy protein • 0.3-20 wt.% of anionic polysaccharide • 0.2-10 wt.% of acid • 15-50 wt.% of a combination of maltodextrin and saccharide, said saccharide being selected from monosaccharide, disaccharide and combinations thereof · less than 15 wt.% of water wherein the soy protein-based particles contain maltodextrin and saccharide in weight ratio of maltodextrin to saccharide of 1:8 to 4:1. This beverage formulation can easily be reconstituted with water, juice or combinations thereof at ambient temperature to produce a stable beverage having an acidic pH and an excellent mouthfeel.
