Unlike traditional coffee which tastes bad if it's too hot or too cool, cold brew concentrate retains it flavor no matter what temperature. So you can cool it down, heat it up, freeze and unfreeze it without having to worry about it losing flavor. In fact, any cold or iced recipe listed on the site can be converted into a hot recipe with a few simple changes: Replace cold water/ice with hot/boiling water Replace milk with heated milk (you can heat...