Abstract: A capsule and method of mixing a beverage are described. A capsule for beverages includes a casing with a top and a base. The capsule also includes a separator located within the casing with at least one hole wherein the separator is attached to the casing along the separator's perimeter. A substance in an upper part of the capsule casing between the upper barrier and the separator, wherein said substance is subjected to the processes of extracting, dissolving and diluting substance content by injecting liquid under pressure into the casing upper part within an appliance for preparing beverages. The capsule contains a mixing unit located between the separator and the lower barrier which seals an outflow duct.