The moisture content of raw material used for granulation inconsistent. In aquatic feed production process, often to compensate for ultrafine grinding of raw materials after the loss of water, to the mixer by adding a certain amount of water, mix and then pellet machines conditioner be quenched. Some manufacturers feed process is relatively simple and direct in a mixer into a certain amount of water, rather than evenly sprayed into the special nozzle, making it difficult to feed the water in the mixture can be uniformly distributed. When this machine pellet is quenched into quenched, because the conditioner is impossible in a short time more uniform distribution of water, steam under the influence of the various parts of the feed, and then aging the quenched inconsistent results, granulation color change after it is inconsistent.