For me I bought a fine strainer and agitate it in a bowl of cold water.It's hard to say because I was alone in my room without any noise. How do you go about making the original mix? Can you just use a bowl? Also, did you buy from Kalm with Kava?
This is the Kava that I got:
https://www.amazon.com/gp/product/B00VDFQKDW/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Member
Maybe that's what people mean by reverse tolerance. It sure does make you feel good though. Also, I skipped the last two days and there was a definite increase in tinnitus/hyperacusis so I agree that there is a lingering effect of some sort.