Its a couple of weeks ago, I decided to give it one more try to make my own KOH (Kalium Hydroxide) water to use it for making soap or cleaning.
So you can see the procedure:
(Utensils: only stainless steel pots and spoons, soft water from rain, snow or distilled, ashes from hardwood, filters, googles, gloves. )
Check https://blog.on-earth.one/2020/01/17/use-of-the-lye-water/ for tips of using your lye-water!!