Quote: Yes, I strain out the excess water and use it again to ferment the new feed that gets added.
When they were eating more, I'd strain it out (I'd aim for the morning, but sometimes it was evening) & add more feed & water to the bucket. The strained fermented feed usually wasn't fed until the following morning.
For example, Mon. morning after I fed the hens, I'd strain out the FF I'd started Sun morning, and Tues morning I'd feed that to the chickens. Even after it's strained, it's still pretty loose and I'd think it continues to ferment. So, even when I was doing it "every day", it had from Sun to Tues to "work".
Yesterday when it was warmer, I noticed that they ate a lot more. I have one coop that still has a heated water bowl for their FF and they go through it much faster than all the other coops. Before they were separated into breeding groups, I had two heated water bowls I used for their fermented feed, plus put one rubber dish outside. They'd usually eat all the FF in the rubber dish, and by morning the FF in the two heated water bowls was either gone or 1/2 way gone. But, when I separated them I needed those heated water bowls for their water, as it's more important for then to have unfrozen water all the time than the FF. Now, it's the same number of hens but there's also multiple roosters eating it. They just eat more of the dry mash when the FF is frozen, so at least they're still getting enough food.
The "bachelor" roosters & the ducks get FF also, but theirs is "plain" without all the additional things like alfalfa meal, flax meal, kelp meal, etc; they go through a bucket every day, and would probably go through even more if I made it for them. But since they're currently not producing any eggs or being used for breeding, they don't get an "all-you-can-eat-buffet".
Well gotta get going, lots to do before work.