The present application relates to a centrifugal separator for separating fruit or vegetable juice from fruit or vegetable pulp. The centrifugal separator comprises a body (22) configured to rotate about a central upstanding axis (24), a chamber (28) formed by the body (22) for receiving pulp and juice, and an elongate aperture (29) defined by and extending arcuately around the body (22). Therefore, juice in the chamber (28) is urged to flow through the aperture (29) when the body (22) is rotated about the central axis. The present application also relates to a juicer for extracting fruit and or vegetable juice from fruit or vegetable pulp comprising a centrifugal separator.