I used to but decided the work wasn’t worth it. And, after reading a few comments from people that were heavily into it, I figured that the ideal aerated tea is difficult to achieve for the home layperson. The timing window is tiny to get a quality brew, plus it requires extra additives (carboydrates). The whole point of my farm was it was using recycled stuff and the manure is local which I pick up myself, the char I make myself etc.

Under mulch, or inserted into soil with a soil knife, or a slurry is how I apply now. I put the castings into a stainless colander to get the char out and then use a watering can when doing a slurry.