Yes, measure first, the dump it directly into the sifter and sift into (usually) a medium-to-large bowl where other ingredients will be/have been added.
I do not believe this answer is correct. I believe one cup "sifted flour" is sifted then measured. One cup of "flour, sifted" is measured then sifted.
You should always sift before measuring any flour with measuring cups. Sifting generally is for removing foreign matter from the flour and aerating it a little so it's not dense. If you are using a scale, density doesn't matter, it weighs the same dense or not.
Another response:
Aside from what we should do, in reality, most home cooks (at least in the U.S.) rarely sift flour anymore. Most of us no longer own sifters. Flours sold today rarely have any sort of foreign matter, and a gentle stirring or filling the measuring cup is sufficient for aeration.
I don't see it making any difference.
After.
It depends on the recipe you are following. Both can be measured by weight or by volume. the more accurate measurements are by weight due to the fact that they can be compacted into differing volumes, yet weights cannot be changed by compacting them. So, if you are writing a recipe, you should measure by weight for consistent results. However, if you are following a recipe that uses volume measurement you should try to stick with that. These often are measured after flour is sifted, and sugar is often measured as loosely or hard packed. Volume measures are teaspoons, tablespoons, cups, ml and liters. Weight measures are ounces, pounds, grams and kilograms.
You cannot put back what has been fluffed so sifted flour and unsifted are unequal in quantity of flour. You can sift the unsifted to make an equal measure like the sifted flour. MamaPat
Yes, "sifted" just means that it has been shuffled or shaken through a sieve or a sifter so that there are no lumps or clogs in it.
Powdered sugar is usually measured in weight.
No but spoon it into a measuring cup as opposed to scooping it with the cup. The same with flour. When you scoop it with a measuring cup you are actually compacting it and getting too much.
It would be fine. Sifted flour is more airy and has about 1 ounce less per cup flour then sifted. if you are using what is sold as sifted flour you really do not need to worry as it is compacted again before you use it ...
Here is an example: After cracking the eggs I must sift the flour.
To use a sifter, put the item you are sifting into the canister. Turn the crank and the item will come out sifted. Some recipes call for sifting before measuring and some call for sifting after measuring. Follow the directions for your recipe.
Flour can vary in density, depending on how it's measured. Common sifted densities read approximately 125 grams per cup, but settled flour can reach upwards of 175 grams per cup.
sifted flour
Depending on what type of flour an if is sifted...here are the conversionsAll-Purpose Flour:1 cup = 140 grams1 cup sifted = 115 gramsCake Flour:1 cup = 130 grams1 cup sifted = 100 gramsWhole Wheat Flour:1 cup = 150 grams1 cup sifted = 130 gramsBread Flour:1 cup = 160 grams1 cup sifted = 130 grams