Hello.

I would like to know how long it is OK to keep and then use to consume, whether it be a straight drink or in cooking, alcoholic spirits, such as whisky, brandy, vodka etc. I even have a full bottle of "Bailey's Irish Cream" stuff.

Over a few years I have acquired a few bottles, 1/4 sizes, full sizes and a few miniatures.
Some of the 1/4 size I have opened and had a few measures from but as I'm not really a drinker they've just been sealed with the screw tops and kept.

There is no sell by, use by or best before dates that I can see.

Is there anyone who knows about the subject as I'd appreciated any input, it seems a shame to waste them, could I possibly even use unopened ones as gifts maybe?

Thank you in advance.