Premium Plain Flour. See our recipes, baking advice or shop at: carrsflour. Or call our helpline 016973 33715. Carr's Collection I Token. Collect tokens and choose from a range of baking essentials at: carrsflour/collection. '00' (Double zero) describes especially fine white flour. We use only the flour from the centre of the grain and very fine sieves to produce a flour which is better than standard plain flour.