My Cella method---- fill the scuttle with real warm water, around 150° put about a teaspoon of Cella in the scuttle and add a small amount of water, maybe about 1/2 teaspoon, soak my Simpson Duke 2, shower, get most of the water out of the brush and start lathering adding small amounts of water as needed to make a thick lather. I like my lather thick as I think it works better with a wet face, which brings the Cella to the correct consistency that I perfer.