How long does it take to rust a nail in soda?

Rust is a metal's reaction to oxygen and water, so in order to rust a nail in soda, you need to create these conditions. Soda contains carbon dioxide gas which is acidic, and can accelerate the rusting process when combined with water and oxygen. The time it takes for a nail to rust in soda depends on a few factors such as the type of soda used, the concentration of carbon dioxide, the temperature, and the amount of nail exposed to the soda. Generally, it can take anywhere from a few days to several weeks for a significant amount of rust to form on a nail in soda.