@RedEx1 I wonder, was they any big advance in making pots, alongside steel, when we managed to make to build much higher temp furnaces? Say around 1750 in the UK.
@RedEx1 We were dead lucky that all the carbon in the iron, from making it, massively dropped its melting temp and made it easy to cast into pots. But it was brittle stuff and no good for much else, tho you know it could be used like stone to make bridges.
@SteelFolk Yes, was rare to get "cooking pottery" in the mid 18th C. mostly tableware or storage vessels by then.