You can pull out of the coffee shop line now that you have the Royal Brew Cold Brew Maker Coffee Keg. This cold brew coffee maker creates that strong, thick cold coffee you love. Thankfully, it’s at a fraction of the price your usual coffee spot charges—and you’ll always have it on tap. Additionally, you can infuse your drink with nitrogen for an extra creamy taste. Not just any iced coffee maker, this nitro brewer keeps 64 ounces of coffee..