A method and system for preparing a beverage or liquid from a food substance contained in a filtering receptacle by passing water through the substance using brewing centrifugal forces. The method includes feeding water into the receptacle, and driving the receptacle in centrifugal rotation to force water to flow through the substance in a centrifugal flow path to the outlet of the receptacle. The system includes equipment necessary to carry out the method. The receptacle is a sealed capsule which is opened for water to be introduced into the capsule, contains a predetermined dose of food substance and is discarded after use.