I've been making manure teas since I was a kid and my dad rigged up a galvanised trash can with a piece of cross drilled PVC pipe in the bottom to steep the goatberries and make it easy to decant with a piece of garden hose. My method nowadays is even more primitive: I use alpaca berries, a few shovels to a half barrel, fill with rain water, and wait a week or so (the so might stretch out to the whole winter when things are wet and plants more or less dormant), then bucket out ad lib. If I think about it when I'm walking past one of the half barrels I might give it a stir. But that doesn't happen much.
My main use was formerly as a dilute solution sprinkled on plants and the soil. But now that I'm a full-on biochar zealot, I use lots of it to inoculate fresh char and it seems to do what I want...I haven't done microscopic inspections or anything like that, just noting that everywhere I use the finished biochar has responded positively.
I'm curious as to the pros and cons of manure vs
compost teas, and wondering whether there is a time and place for one or the other. Also thinking about mixing the two, either in process or after the fact. Reckons?