A team of engineers at MIT has devised a groundbreaking method for producing hydrogen gas from seawater using aluminum and a surprising ingredient - caffeine. The traditional method of using aluminum to react with water for hydrogen production was enhanced by pretreating the aluminum with gallium indium and running the reaction in an ion solution. This process allowed the alloy to be collected and reused for generating more hydrogen efficiently. The team discovered that seawater, abundant and cost-effective, could serve as the perfect solution for this purpose. They also found that by adding caffeine to the reaction, the production time for hydrogen was significantly reduced from two hours to just five minutes, a remarkable advancement. The engineers are now working on developing a compact reactor that can be installed on marine vessels or underwater vehicles to produce hydrogen whenever needed, offering a sustainable and eco-friendly alternative to traditional fuel sources.