When I had my double bucket system I always had some in the bottom bucket reservoir but right now I don't have any excess liquid....but I sure know how to get some. The next time I refresh my feed and pour the water in and mix it, prior to mixing in the dry feed, I'll scoop me out some liquid. I'll add more liquid to it and allow it to feed on the solubles already in the water or even add a little fresh feed to feed the scoby(it will sink to the bottom) and then just keep this fermented water on the side for mixing with dog food.
He sure is beautiful and his name suits him. GSDs are prone to skin issues, aren't they? My friend always has one or two in her pack and they always have skin issues and are constantly taking steroids for it.
So you can ferment dog food, even with meat in it? Or are you saying you just pour the liquid over the dog food?