Most home brewers are of the 10-cup capacity, which in actuality is a total of 56 ounces. That is, each cup is only 5.6 ounces. To brew a good cup of coffee you should use 1.8 oz (4 tablespoons) of coffee in a 10-cup pot. To brew a good cup of coffee you should use 2.5 oz (5 tablespoons) of coffee in a 12-cup pot.