ELI5 Soda - why it tastes different out of a can vs a glass bottle?

Some people say Coca Cola tastes different from an alumninum can compared to when drinking out of a glass bottle? Why is the level of fizziness also different between aluminum, plastic and glass bottles? What is so hard to replicate about the original Coca Cola? How can soft drinks like Coca-Cola Zero have almost 0 calories in them? ... we explain like I'm five Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: mossimo5, wanerious, chabays, ammon-jerro, decademoon and moy2093 To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Join us on Twitter: https://www.twitter.com/eli5ThePodcast/ or send us an e-mail: [email protected]