This amporaccio is beautiful enough that you’ll want to keep it on display. However, their contents will maintain their flavor better if the filled bottle is stored in a cool, relatively dark place when not being used.
Serve balsamic vinegar in your amporaccio as a condiment at the dinner table for people to use as they wish.
When you would like to wash your amporaccio, the most effective method probably to fill it with a little hot water and dish soap, then shake it to rinse the entire bottle. Pour out the soapy water and shake it with clean water repeatedly to wash all the soup out.