In this recipe, coffee brewed slowly in cold water is less acidic than hot-brewed. You can use this concentrate straight over ice or microwave half a mug of coffee and then add a half cup of boiling water for quick hot coffee. Develop your own ratio of coffee to water for your custom brew.
Ultimate Iced Coffee
Cold-brewed coffee poured over coffee ice cubes makes the best iced coffee. It takes a bit of planning, but its full, rich flavor makes the wait worthwhile. The ideal coffee for this cold drink is a blend of mid-roasted beans with moderate acid. Using a dark roast and beans high in acid produces a sharper, more bitter result.