Editing Wrought iron (section)

===Lancashire process===
{{Main|Lancashire hearth}}

The advantage of puddling was that it used coal, not charcoal as fuel. However, that was of little advantage in Sweden, which lacked coal. [[Gustaf Ekman]] observed charcoal fineries at [[Ulverston]], which were quite different from any in Sweden. After his return to Sweden in the 1830s, he experimented and developed a process similar to puddling but used firewood and charcoal, which was widely adopted in the [[Bergslagen]] in the following decades.<ref>{{cite book |first=G. |last=Rydén |editor1-first=G. |editor1-last=Rydén |editor2-first=C. |editor2-last=Evans |section=Responses to Coal Technology without Coal: Swedish Iron Making in the Nineteenth Century |title=The Industrial Revolution in Iron: The impact of British coal technology in 19th century Europe |publisher=Ashgate |location=[[Aldershot]] |year=2005 |pages=121–124}}</ref><ref name="Evans2007" />{{rp|282–285}}