Put this cold brew coffee maker filter onto a wide-mouth mason jar.
Let coffee grounds soak in a cold-water-filled mason jar for over twelve hours.
Then twist the second mason jar on top of the filter.

And watch your cold brew filter.
Put this cold brew coffee maker filter onto a wide-mouth mason jar.
Let coffee grounds soak in a cold-water-filled mason jar for over twelve hours.
Then twist the second mason jar on top of the filter.

And watch your cold brew filter.