Soda water first stored in refrigerator and then at room temperature If I put an unopened bottle of soda water in the refrigerator and decide two weeks later that there is not enough room so I store it in a cabinet outside the refrigerator, will it lose its bubbly taste and carbon dioxide?
If it's unopened it will stay perfectly fine, cold or warm, until the Best Before date printed on it.
It doesn't need refrigerating until opened - unless, of course, you want to drink it cold ;)