The amount of cold water needed will vary depending on the type of rice you use. To calculate this, subtract 14 fl oz. from the amount of water needed for 2 cups for your rice brand. For example, if your brand calls for 3 cups of water for 2 cups of rice simply subtract 14 fl oz from 3 cups(24 fl oz). This leaves you with 10 fl oz or 1¼ Cup of water.