corned powder

Corned powder, also known as black powder, is an explosive mixture composed of saltpeter (potassium nitrate), sulfur, and charcoal. Its exact origin is debated, but it is believed to have originated in China around the 10th century, initially used for fireworks and signals. Europeans likely acquired it in the 13th century and developed its use as a weapon.

A significant improvement in its production was "corned powder," developed after 1400. This involved grinding the ingredients together in water, creating a stable grain matrix that burned more uniformly and rapidly than earlier forms. This process, often done in water-driven mills, reduced costs and improved safety. The grain size varied, with larger grains being used for firearms to control the burning rate and prevent excessive pressure.1234