As many of you probably know, there used to be a soda called Surge that got discontinued years ago. There's a new soda called Vault which tastes strikingly similar to Surge and supposudly is the same formula with more caffine and a different color. Well, I used to be a Surge addict when it was still available, and became a Vault addict when it was finally available. I would drink about 5 bottles worth, but have somewhat kicked the habit and now moderate how much Vault I drink. Anyway, I bought a can of Surge on eBay and plan to do a taste test comparing it to Vault. The can is from 1999, so I was wondering if there are any health hazards associated with this. Since the can is sealed I would assume it would be okay. Anyone know about safety when drinking old soda like this?