The Lancashire process brought out a soft iron with a very low carbon content. The combination of the heavy nose hammer and the high temperature in the bloom reheating furnace reduced the slag content to a minimum. The Lancashire wrought iron was a high iron quality and the product, the iron bars were sold all over the world but mostly to Sheffield in England for tool and steel production. There was still a demand for Karmansbo iron bars when the production ended in 1958. Lack of pig iron from blast furnaces using charcoal and people willing to learn the hard job was the main reason for stopping the production.