Apparatus (3) for manufacturing a liquid. The apparatus (3) is arranged for inclusion in a pellet coating system (1) to supply the liquid to downstream apparatus such as a pellet coating station (204). The apparatus (3) includes: a mixing vessel (9) a mixing device (13) for mixing substances located in the mixing vessel (9) water supply means (21) arranged to supply water to the mixing vessel (9) a first storage vessel (7) for storing a first particulate material a weighing system (17) a feed system (11) for feeding first particulate material to the mixing vessel (9) and a control system (19) wherein the control system (19) is arranged to receive signals from the weighing system (17) and to control operation of at least part of the feed system (11) according to the signals received from the weighing system (17) to deliver a target mass of first particulate material to the mixing vessel (9). A system (1) for coating pellets, such as feed pellets. The system includes: the apparatus (3) for manufacturing at least one liquid a pellet source (202) at least one pellet coating device (204) means for feeding at least one liquid from the manufacturing apparatus (3) to the pellet coating device (208 83) wherein the pellet coating device (204) is arranged to apply the or each liquid to at least some of the pellets received from the pellet source (202).Linvention concerne un appareil (3) permettant de fabriquer un liquide. Lappareil (3) est conçu pour être inclus dans un système de revêtement de granulés (1) afin de fournir le liquide à un appareil en aval tel quun poste de revêtement de granulés (204). Lappareil (3) comprend : une cuve de mélange (9) un dispositif de mélange (13) permettant de mélanger des substances se trouvant dans la cuve de mélange (9) un moyen de fourniture deau (21) conçu pour fournir de leau à la cuve de mélange (9) une première cuve de stockage (7) permettant de stocker une première matière particulaire un système de pesée (17) un système dalimentation
