I was reading where some vintners add coloring and or alter wines in barrel to "improve" maybe poor grapes. I guess I assumed that wine making was a mostly "natural" process (whatever that means now).
My questions are
1 Are most wines manipulated chemicaly? I mean other than adding sugar or acid.
2 Is added Color a routine thing?
3 Do wine makers have to disclose coloring?
4 Or is this old hat and everyone just assumes this is part of the wine experience?