What coal is best for blacksmiths?

The best coal for blacksmiths is typically bituminous coal, particularly from the coking variety, as it burns hotter and produces less smoke than other types. This coal is ideal for forging due to its ability to reach the necessary temperatures for shaping and welding metal. Anthracite coal can also be used, but it’s less common because it burns too cleanly and doesn’t produce the necessary carbon for steel hardening. Ultimately, the choice can depend on availability and specific forging needs.