20s gives time to pour hot water and stir. It makes sense when you do it. Start the timer before pouring the first water. Idea is to wet all the grinds - if you

20s gives time to pour hot water and stir. It makes sense when you do it. Start the timer before pouring the first water. Idea is to wet all the grinds - if you fill it right away there may be some dry grinds on the bottom (especially with a finer grind).