I have many old bottles of liquor, liqueur, and vermouth. (listed below) I'm talking about bottles about 60-70 years old. I would like to see what peoples' experiences were with opening them and trying them. I'm mostly curious if the vermouth is ever salvageable. I feel like, once I open them to see, my window of opportunity to drink and enjoy it would be small. Upon my own tasting of the below items, I'd gladly share what I find. Until then, what have you learned by opening an old bottle? Do you drink it alone? Do you make cocktails with it? If it tastes crazy (bad), do you have a process to try to bring it back to life via filtering or something like that? (long winded question, but I'm really curious) Cheers everyone!