All-porpose flour and self rising flour differ how

kaddiew, Oct 4, 10:31pm
All purpose flour is just flour that can be used for most purposes, and which needs a raising agent (baking powder and/or baking soda) when baking needs to rise (cakes etc). Self raising flour already has the raising agent in it.

beaker59, Oct 4, 10:38pm
All purpose is plain straight flour, self raising has raising agents like baking powder.

buzzy110, Sep 19, 1:49am
Do you actually want to know if self raising flour is an all-purpose flour as well? Or put another way, is all-purpose flour used to make self-raising flour? I think this is a very good question as I see self-raising flour used in all sorts of recipes, which, if S/R flour wasn't being used would require either all-purpose or pure or high grade flour.

I cannot seem to find all-purpose flour anymore. Way back in the mists of time, when I was just a young person, we got only one sort of flour. My mother used to buy it in a cloth bag then it was sold in a strong paper bag. Then one day, when I wasn't looking it diverged into high grade, pure and self-raising.