The Toddy Cold Brew System is designed to make coffee concentrate which can be served hot or ice cold. 

The traditional hot brewing method creates a higher level of acidity in coffee, which can be difficult for coffee connoisseurs who have a sensitive stomach. In 1964 Todd Simpson, a chemical engineering graduate, developed and patented this cold brewing system.  It uses regular coffee beans and yields a superior tasting cup of steaming hot coffee; acidity levels are reduced by an amazing 67% compared to traditional hot brew methods. The coffee that is produced is bold, yet super smooth. The Toddy Cold Brew System is also great for brewing tea which can be served hot, or as iced tea.