There are three kinds of mirin but let me just focus on this one. For people like me who prefer not to use alcohol, this one's it.
My most reliable source, no less than my husband, explained that mirin simply means sweet Japanese sake.
This one I use is called mirin-fu or as written on the bottle on the left, mirin-fu choumiryou 「みりん風調味料」meaning "mirin-like seasoning". It contains less than 1% alcohol, which, as we know, evaporates when heated. So, for an added zing to your dishes but minus the alcohol-caused reactions, here's your best choice!