Method for producing starch composition

A method for producing a starch composition, comprising the steps of:

• (a) preparing a raw material mixture which contains a raw starch material, one or more selected from the group consisting of an acid-treated starch and a dextrin, and an aqueous alkaline solution, the raw material mixture having a moisture content of 20 parts by mass or more and 35 parts by mass or less per 100 parts by mass of the raw material mixture;
• and
• (b) heat-treating the raw material mixture having a moisture content of 20 parts by mass or more and 35 parts by mass or less obtained in step (a) to a temperature at which the raw material mixture becomes 120° C. or higher and 150° C. or lower,
• wherein, if the acid-treated starch is present in the raw material mixture, the mass ratio of the acid-treated starch is 0.5 parts by mass or more and 20 parts by mass or less to 100 parts by mass of the raw material mixture, and
• wherein, if the dextrin is present in the raw material mixture, the mass ratio of the dextrin is 0.1 parts by mass or more and 20 parts by mass or less to 100 parts by mass of the raw material mixture.