coffeehustle.org › best-nitro-cold-brew-coffee-maker9 Best Nitro Cold Brew Coffee Makers [Spring 2022] – Detailed ... Mar 14, 2022 · Grind your favorite fresh coffee beans. A coarse grind is best for cold brew coffee. Steep the grounds in cold or room temperature water for 12 to 24 hours. The longer they are steeped, the more flavor the coffee will have. Filter out the grounds from the cold brew coffee to leave only the cold brew concentrate.