I know of a method where you soak a stained (with red wine obviously XD) shirt in white vinegar and then you wash with liquid detergent and warm water
Indeed doing this as soon as possible helps, it becomes more difficult as times passes.
But from my knowledge you should also pop it in a washer and let it be washed more thoroughly cause alcohol smells idk though maybe that's a personal pet peeve or sth
Also I believe our MC used white wine right? Dk how similar it is to vinegar chemically
I know about the trick with salt. Rubbing salt on the stain will absorb the wine and the colour.
Does the trick work tho? im curious...