Can someone please explain to me the French flour grading? I bake my own sourdough bread and have always used bio wholemeal stoneground flour from Stoats Mill in the U.K. I have bought it over myself or had it delivered for the last 15 years or so but now, thank you Brexit, I need to find a local source, quite happy to do so, although my bread might not be up to scratch until I become familiar with the new stuff. I am, however, confused as to which grade I should use for bread, T80 or T110, what does the number signify ? I have found a flour mill not too far away and intend to go and visit but would like a little more knowledge before I do. Thanks.