I have used flour that was 2 years past the date. I made bred with it and it was fine. I sifted to make sure there were no weevils in it, and there were not so I used it. The bread was perfectly fine, and the yeast was way way past it's date as well. The vast majority of these dates have no value in fact. In deciding weather to use a product that is out of date you must use a little judgment, I could sift the flour so I knew that was OK, and I always proof my yeast so I had a good idea that would work as well.
which is the best flour to make bread out of strong plain flour self rasing flour or plain flour
If you were baking a cake: Self-Raising Flour - would make it rise Plain Flour - wouldn't make it rise People use self-raising in cakes to make them bigger, but they use plain in pancakes so it keeps it thin.
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.
You can use plain flour with a teaspoon of baking powder.
Yes
Yes you can, I use whatever flour I have to hand.
You can but you need to add baking powder and salt to it.
Yes, assuming that by "plain flour" you mean all-purpose flour. Because all three sound like the exact same thing.
yes you can use plain flour - you just need to add 3-4 tsp baking powder to each 8 oz (225 g) of plain flour
yes
white and yellow
Yes.