I should probably mention that a few of the lessons I've had on this have come by accident, like the time I went to great pains to make sure there was no wine in the sauce I was eating at a restaurant, only to find out after I'd eaten it that it they'd misunderstood the question. They assumed I meant UNCOOKED alcohol and as I freaked out, they assured me it had all been cooked off. Then I wondered why I was making such a fuss, since I hadn't been even remotely triggered.
As to the mouthwash...that was a deliberate choice, but here's the thing: I don't drink it, I spit it out. And I can't say I enjoy it; I use Listerine!