Liquid food preparation system for preparing a liquid food from a food substance comprising a device and a capsule removably insertable in the device, by passing water through the substance in the capsule, comprising a water injection head for injecting water in the capsule and a capsule holder for holding the capsule in the device, means for driving the capsule in centrifugation, perforating means which are configured relative to the capsule in the device to open outlets at the periphery of the capsule, a capsule comprising a delivery pierceable membrane, wherein said perforating means, are suited to be engaged through the membrane for forming with the perforated membrane a filtering means for retaining solid particles in the capsule and orifices in the membrane for enabling the centrifuged liquid to leave the capsule.