Put 1 Reborn Coffee DIY Cold Brew Coffee Brewing pack into a pitcher then add 20-24 oz of water, shakes or stir to soak filter. Steep in the refrigerator overnight, or for 8-12 hours. When it's finished steeping, discard the coffee pouches and add ice. Enjoy your Cold-Brewed Ice coffee. The concentrate can also be mixed with milk or sugar to get a more intense flavor.