Two fire-clay pots, charged with a little clean sand ... operation imparts oxygen to the impurities always present in cast iron, converting them into compounds which combine with the sodium ...

If you aren't sure how to season your cast iron check out my guide -> here. A dutch oven is similar to a deep pot with a lid.

Such pots were very complex to ... By using coke, iron of a good quality could be easily produced in large quantities, enabling cast iron goods to be made in large numbers. This was the beginning ...