tl;dr at the bottom

Quest book says "you are gonna need a lot of blast furnaces, so have at least 5", but I do just fine with just 2, and one of them is usually just idling, so more like 1.5 really, all the while I'm getting steel from an lv smelter. I understand why steel isn't first made in a bronze blast furnace, but I really want to get steel the way we get it irl - from a blast furnace. One problem I see with a recipe giving more steel is that you could effectively dupe iron that way, but I have a solution - damascus steel. You can create that instead in a blast furnace, and then oredict it everywhere except for a centrifuge. Another recipes could be decomposing stuff like tetrahedrite and bauxite for extra metals yields, but no oxygen/hydrogen/sulfur, or maybe in a different form, requiring further purification (btw all the dusts and liquids are already in game). Also, some types of ores, mainly gravel ones, don't have recipes in the blast furnace, even if they should (i.e. limonites)

consider adding more recipes for blast furnaces, like for gravel ores, different steels or decomposing oxides and sulfides, I'd love to give some suggestions if that's ok (and sources mentioning them, if needed)