Instant drink powders comprising hydrolyzed whole grain

A process for preparing an instant drink powder comprising:

• preparing a hydrolyzed whole grain composition, comprising the steps of:
• contacting a whole grain component with an enzyme composition in water, the enzyme composition comprising at least one alpha-amylase, the enzyme composition showing no hydrolytic activity towards dietary fibers,
• allowing the enzyme composition to react with the whole grain component, to provide a whole grain hydrolysate, and
• providing the hydrolyzed whole grain composition by inactivating said enzymes when said hydrolysate has reached a viscosity of between 50 and 5000 mPa·s measured at 65° C.;
• and
• providing the instant drink powder by mixing the hydrolyzed whole grain composition with a primary ingredient of particles or agglomerated particles having a particle size below 5 mm.