If they can't eat all the mash in one day then just save the dry powder and make only as much wet mash as they can eat.
Or do fermentation with it.
(I generally think that fermentation is too much bother, but I had a leak wet a full feeder so ended up with one batch. The chickens ate it over the course of several days.
Or do fermentation with it.
(I generally think that fermentation is too much bother, but I had a leak wet a full feeder so ended up with one batch. The chickens ate it over the course of several days.