For me undrinkable = faulty wine, but those are very rare these days. I just throw those wines away. Bigger problem with wines in region of 5 - 15 euros is tha

For me undrinkable = faulty wine, but those are very rare these days. I just throw those wines away. Bigger problem with wines in region of 5 - 15 euros is that they are boring. They taste like generic wines and nothing more. I put aside those wines and use them for cooking.