So i did this with two grinders but i did it my way : 2 grinders, 3dl water and 50-75grams butter. Let it simmer for a minimum of 2hours. NOT boil, just simmer. Then i remove my grinders, put two teabags in there and made my self some tea. After about 2hours the high was comming on and the trip begins. Was high like i kite fore 10-12 hours and got two really cleaned grinders.
Just my two cents
Justin