Over time, rust will decompose metal and destabilize the structural integrity of your outdoor furniture, but there is a solution you can find in your kitchen: Just grab a potato.
The potato hack works against rust on metal furnishings because of the vegetable's oxalic acid — an organic chemical that transforms stubborn iron aggregates into solvable ions.
Simply put, this unassuming vegetable will help you get rid of the unsightly rust from your metal outdoor furniture without much effort or strain on the pockets.