1770 he settled in Falun, where he introduced improvements in copper smelting, and participated in building up several factories, including those for vitriol, sulfur and red paint.
Godine 1770. preselio se u Falun, gde je uveo poboljšanja u proces topljenja bakra te učestvovao u izgradnji nekoliko tvornica — uključujući tvornice za vitriol, sumpor i crvenu boju.