This invention is concerned with providing apparatus for blending product within a container (10) by charging the container with product, applying a lid (l2) with an integral blending element (14) thereon. The product is blended by driving the blending element with an external drive (34) whilst the container is in an inverted position. The assembled and filled container is located in a holder (22) whilst in a generally upright position and the holder is moved to invert the container so that the lid is lowermost and the product is in contact with the blending element in which position the product is blended. Inversion may take place in a housing (23) in which the product may be heated to a blending temperature.