In a bowl, mix together the flour, yeast and salt. Add 120ml of the BRITA filtered water and 1½ teaspoons of oil. Mix the ingredients together. Gradually add the remaining water and oil until all the flour has come away from the sides and you have a soft dough.
Pour a little oil onto your work surface and then knead the dough on top for 5-10 minutes. To start with the dough will be wet, but it will come together to form a smooth dough.
Brush a little oil inside a clean bowl and place the dough inside. Cover with plastic wrap and leave in a warm place to double in size - up to 2 hours.
Preheat the oven to 250C/Gas 9 and place a clean baking tray on the middle shelf to heat up.
Dust your work surface with flour and tip the dough onto it. Knock it back by folding it inwards over and over, then split into 6 balls. Roll into oval shapes around 0.5cm thick.
Dust the heated tray with a little flour and place the pita breads onto it.
Bake for up to 10 minutes until just browned.
Best served warm - be careful when splitting as hot air will be released!