Do not confuse weight ounces with volume ounces when measuring powdered sugar. Know exactly how much you are purchasing. Everyone is aware that one cup equals eight ounces, right? In actuality, when measuring ingredients for a recipe, 1 cup does not always correspond to 8 ounces.
- We know that 1 cup of water weighs 8 ounces, but because honey is more viscous than water, 1 cup of honey weighs 12 ounces.
- Powdered sugar directly from the box or plastic bag weighs 4 1/2 ounces per cup; therefore, a 1-pound box (or 16 ounces) contains approximately 3 1/2 cups of powdered sugar.
- If a recipe calls for powdered sugar, 4 ounces of powdered sugar will equal 1 dry measuring cup.
Powdered sugar becomes lighter and fluffier when sifted, so it occupies more space in the cup.
Before or after measuring confectioners’ sugar, do you sift the sugar?
Conversion Chart
Powdered sugar, also known as confectioner’s sugar, is white sugar that has been ground into a fine powder so that it dissolves easily; it is typically used to make icings and frostings or as a garnish for baked goods. About three percent of powdered sugar is cornstarch, which helps absorb moisture and prevent caking.
Exists a method for measuring sweetness?
Refractometers Using a refractometer, you can determine the sugar content of your juice or cordial. In fact, refractometers are compatible with a vast array of sample types, such as honey and milk, and are widely employed in the food and beverage industry and beyond. 
Measuring Sugar Spoon sugar lightly into a graduated measuring cup, then level with a straight edge or spatula. With the back of the spoon, pack the brown sugar into the cup, then level it off. It should maintain its form when removed from the cup.