Hario does it again with their Cold Brew coffee maker. The simplicity is what makes this coffee brewer better than the next. All you have to do is place about 80g/2.8oz of your favorite coffee grinds and then top it off with water. Stir it for a bit until all the grounds have been soaked. Place it in your refrigerator overnight ( 8hours) and enjoy the full bodied, rich taste of cold brewed coffee. There's nothing like it.