A jerrycan might seem like just a fuel container, but its impact goes far beyond that. Originally designed in 1930s Germany for military use, it revolutionized fuel transport with its durability, efficiency, and ease of use. Unlike earlier fuel cans that required extra tools and funnels, the jerrycan introduced smart design features—from its triple-handle grip to its airtight, spill-proof construction. Its design was so effective that it was widely adopted by both Axis and Allied forces during World War II, and its influence is still seen today in both military and civilian applications worldwide.