Honestly, she might have the same thing I do. I don’t know if it’s got a name or anything, but absolutely all red wine tastes like balsamic vinegar to me, almost indistinguishably so, even when I’m sharing it with someone who’s talking about how this one is “fruity” or whatever.

I went through a short phase of thinking I was being pranked. So I’m with your sister on this one, minus the sangria bit lol.

Maybe she lost her taste buds during covid

A large part of wine tasting is bullshit, but different styles are definitely different.