Root and Pestle's research team has done a fairly deep dive to answer this question once and for all: Shoudl you do multiple washes (i.e. mix the same powder with a new batch of fresh water in order to maximise extraction/get the best bang for your buck?)? We've their permission we've reposted it on our website together with a small intro into some of the differences between isntant and traditional + our take on the unique advantages offered by traditional grind.
Have a read, we hope you enjoy it: https://kavasociety.nz/blog/2024/7/...behind-efficient-traditional-kava-preparation
Have a read, we hope you enjoy it: https://kavasociety.nz/blog/2024/7/...behind-efficient-traditional-kava-preparation