The cold brewing method that I feel works best takes forever so you have to make a lot (IMO) and you enjoy it throughout the week. What happens is you use a Central American bean (you can use others but I find these are best for this method) and its ground. You pour room temp water on it and it stands for 16 to 20 hours. Then you filter it with a very good filter (there should be no grounds) and you have a concentrate that you can mix water milk whatever with it. Probably 2:1 ratio since its a concentrate. It's FAR less acidic, and has less caffein than a typically hot brewed coffee. If you're interested you should research it there is a LOT of info out there on how to find the best way for you. Or if you don't want to make your own and just want to try some I would try Secret Squirrel.