A method and system for processing a fermented dairy product (DP), comprising feeding, in a product feed conduit (22), fermented dairy product (DP) to a separator (12), separating (204) the fermented dairy product (DP) into a heavy phase (DP') and a light phase (W), returning a part (W2) of the light phase (W) to the product feed conduit (22), such that the returned part (W2) of the light phase (W) is mixed with fermented dairy product (DP) that is fed into the separator (12), while another part (W1) of the light phase (W) is removed from the fermented dairy product, such that the heavy phase (DP') forms a concentrated, fermented dairy product.