Shelf life of opened sherry, port, or booze

[hawthorne]

With both port and sherry it depends what kind you’re drinking. Tawny or liquor port will keep for pretty long periods. Vintage port is best drunk at a sitting.

Fino and manzanilla sherries (the pale, dry ones) shouldn’t be kept unopened for more than a couple of months. Once open, a couple of weeks in the fridge is about all they can take.

[Barbarian]

There’s a definite decline in port taste if you have a bottle go opened for a couple of days. However a bottle of LBV (late bottled vintage) will maintain the same taste for a longer period of time, since it was designed specifically for that purpose.