Pressed Steel Construction: Unlike older, flimsy cans, the original Jerry can was made from two stamped, interlocking pieces of steel, with a seam welded in the middle. This minimized leaks and provided exceptional strength. Modern versions are often made of galvanized steel and coated with a durable, powder-coated paint finish for rust resistance.
Distinctive Shape: The can has a rounded, rectangular cross-section and is typically ribbed with cross-like indentations. These indentations are not just for looks; they strengthen the can and allow the contents to expand in varying temperatures without deforming the container.