flour can get a type of bug in it that looks like a moth larvae. Keep your flour in a container in the refrigerator to avoid this.
Yes, flour can get old. Plus you'll know when it starts to smell "stale" or rancid"
If the flour has become rancid or stale or has picked up other flavors during storage, those could end up in the final product and ruin it.
Any flour can.
The ratio differs from recipe to recipe.
Gluton
Bread flour or self-rising flour It depends on the recipe
100g flour is equal to
You need 72 oz = 4,5 lb of flour.
If a recipe calls for self-rising flour, your recipe will not turn out if you replace it with unbleached flour only because unbleached flour does not rise. You would also need to add baking powder to the recipe (about three teaspoons per cup of flour) if you were making this substitution in order for your recipe to rise.
It is best to use self-raising flour if the recipe asks for it, as it is not the same as plain flour, but you can substitute plain flour for self-raising flour provided you add raising agents like baking powder and bicarbonate of soda yourself to the flour.
There isn't one.
If your recipe calls for cornstarch but you do not have any on hand, you can easily use flour. If the recipe calls for 1 tbsp. of cornstarch, use 2 tbsp. of all-purpose flour.
If a baker doubles a recipe that calls for 6-2/3 cups of flour, how many cups of flour will be needed in all?
2 and 3/4
Yes, if baking flour is too old or has been contaminated, it can develop a rancid smell. The smell might also occur if the flour is stored in an old oil container. It could absorb the odor of rancid oil if kept in an open container near old oil. In any of these cases, the rancid-smelling flour should be discarded, as the smell would spoil any product made with it.