Ice coffee , place 1/2 pound of ground coffee of you choice in about a quart and a smidgen of cold water . Go to work , when you get home drain through a filter . You will now have ice coffee mixins . This is way better than useing old hot coffee . You guys will have to trust me on this one as it takes a 1/2 pound of coffee . The finer the grind the better it works . Dilute to your taste .