Measuring ingredients directly over the mixing bowl can lead to over-measurement, especially when leveling, potentially ruining the recipe's proportions. A better practice is to measure into a separate bowl or container.
When you measure flour, sugar, or other dry ingredients directly over your mixing bowl, you risk accidentally adding too much. This is especially true when leveling off the excess with a knife or other straight edge. Any extra ingredient that falls off the measuring cup or spoon goes directly into your batter or dough. Even a small excess of flour can significantly impact the final texture of your baked goods, making them dry or tough. Similarly, too much sugar can make your recipe overly sweet or affect its structure. Using a separate bowl or container allows you to accurately measure the ingredient and then add it to the mixing bowl, ensuring precise proportions and a better outcome. This method also gives you the opportunity to correct any mistakes before the ingredient is added to the rest of the recipe.
For the most accurate measurements, especially in baking, use a kitchen scale to weigh your ingredients instead of relying solely on volume measurements. This eliminates inconsistencies caused by variations in how ingredients are packed into measuring cups.