Foamer ingredient in the form of a powder and method for manufacturing the same

A method for manufacturing a foamer ingredient, comprising:

• (a) preparing a mixture comprising carbohydrates and one or more proteins having a protein-bound phosphorus to nitrogen ratio of less than 0.03 g/g and having a proline content of less than 7 g per 100 g of protein, with the total amount of protein being chosen such that in the foamer ingredient as formed in step (f), the total amount of protein is at least 0.5% by weight and less than 5% by weight, with the mixture being in the form of a powder;
• (b) optionally blending the mixture with one or more additives;
• (c) applying external gas pressure exceeding atmospheric pressure;
• (d) heating the thus obtained mixture to a temperature above 90° C.;
• (e) cooling the mixture to a temperature between 40 and 80° C.;
• and
• (f) releasing the external gas pressure, resulting in the foamer ingredient in the form of a powder comprising entrapped gas,
• wherein the foamer ingredient releases at least 3 ml of gas per gram of foamer ingredient upon dissolution in 20° C. of water at atmospheric pressure.