A Cold-Brew Maker: Hario Cold Brew Coffee Bottle If you're all about cold brew, then you'll want the Hario Cold Brew Coffee Bottle ($34), specially made in Japan. Just fill the container with coffee grounds and water, and let sit for eight hours. The useful size makes up to five cups, so you can use it for a few days. Image Source: food52.com Hario Cold Brew Coffee Bottle $34 from food52.com Buy Now