System and method for dispensing beverages having different foam levels from capsules

A method for allowing a user to form a beverage having a desired foam level from a system that forms the beverage by injection of a fluid under pressure into a capsule that contains a beverage-forming substance, with the capsule including a chamber containing the substance and a beverage dispensing structure adapted to retain a certain extraction pressure in the chamber before allowing the beverage to flow out of the capsule comprising the steps of:

• providing first and second capsules for selective use in the system, with the first capsule having a first beverage dispensing structure so arranged and constructed to retain a first extraction pressure in the capsule, prior to the complete delivery of the beverage, and the second capsule having a second beverage dispensing structure so arranged and constructed to retain a second extraction pressure in the capsule, prior to the complete delivery of the beverage, with the first extraction pressure being greater than the second extraction pressure so that a greater amount of foam is provided upon delivery of the beverage from the first capsule as compared to that provided by the second capsule, so that the user can obtain a beverage with the desired foam content by selection of the first or second capsule and introduction of the selected capsule into the system for formation and dispensing of the beverage.