A cup of dry ingredients does not have a fixed number of ounces because ounces can measure both weight and volume, and dry ounces are a measure of weight that varies by ingredient density.
- For example, 1 cup of all-purpose flour typically weighs about 4.4 to 4.5 ounces.
- 1 cup of granulated sugar weighs approximately 7 ounces.
- 1 cup of butter weighs about 8 ounces.
Thus, the number of dry ounces in a cup depends on the specific ingredient and its density. To get an accurate measurement of dry ounces, it's best to weigh the ingredient on a scale. In contrast, 1 cup of liquid always equals 8 fluid ounces, which is a measure of volume, not weight.