It was discussed in tonight's AA meeting.

You mean naturally, or as a good mix ?

The sugars in orange juice can ferment. Just like in wine. Over time the sugars become a form of alcohol.

However, fresh OJ does not contain alcohol.

Only if you put it in or it is so old that it has fermented... and if that is the case, you would know after the first drink that something was up.

Mimosa?

I'm really not getting what you're asking.