Deuly takes the bag out of the brew after 8 hours or so and then aerates without it for another 20. Does it really make a difference if you take the bag out or not and how does the tea coime out?
When ever I made tea using this method (it's been a while) I used it right away after removing the castings. To my brain, I don't know what benifit continued aeration would have without the castings.
Of course my brain has been wrong before!