Described herein is a method of manufacturing a soluble flour comprising preparing a flour-water slurry, adjusting the pH of the slurry to a pH ranging from 3.5-6, adding an enzyme to the pH adjusted slurry in an amount ranging from 0.02-2.0 g enzyme/g flour to form a reaction mixture, cooking the reaction mixture at a temperature ranging from 60-140 C until a dextrose equivalent of 5 to 18 is achieved, inactivating enzyme to obtain a soluble flour; and adjusting pH of the soluble flour to range from 4-5. The soluble flour obtained has a dextrose equivalent value ranging from 5 to 18, a solubility greater than 50% (at 5% solids), and a viscosity between 0.001 and 1.0 Pa*s at temperatures ranging from 20-50 C (at 10% solids).

Described herein are soluble rice flour compositions having desirable chemical properties and solubility and viscosity functionality for use in food products such as, beverage mix, infant food, a medicinal product, an emulsion, convenience foods, or a snack-based filling. Such compositions can be used as a partial or complete replacement of maltodextrin and offer a more clean-label alternative.