Measuring flour by volume can yield inconsistent results: a cup of flour can weigh anywhere from 4 to 7 ounces depending on how it is packed, while a 4.5-ounce cup will always weigh 4.5 ounces. That variability is why some bakers prefer weighing ingredients, according to the source material.
Beyond accuracy, weighing ingredients can reduce the number of dishes used. A one-bowl cake becomes a true one-bowl recipe, minimizing mess and creating a smoother cooking flow compared to searching for measuring spoons.
How to Use a Digital Scale for Baking
The method relies on taring, or zeroing out, the weight of the bowl and each added ingredient. Place an empty bowl on the scale and press the tare or zero button. On most digital scales, this is the same as the "On/Clear" button; mechanical scales have a knob to reset to zero. Add the first ingredient until the scale reaches the desired weight, then zero it out again. Repeat for each subsequent ingredient. If the recipe calls for mixing or whisking between additions, do that, then re-zero the scale before adding the next ingredient.
The source notes that this approach becomes second nature quickly. It also suggests that if more cooks adopt weighed ingredients, they might free up drawer space previously occupied by measuring cups and spoons. The author jokes about using that space for stashing chocolate.
Editorial Notes