I use a similar method and the stirring / first drench (the “bloom” - 45-60sec sufficient in my experience) is important for letting all the air come out of the

I use a similar method and the stirring / first drench (the “bloom” - 45-60sec sufficient in my experience) is important for letting all the air come out of the grounds so that they can dissolve in the rest of the water and not float on the top where the extraction will be suboptimal