Discovered various old bottles downstairs

[pricelessbrewing]

So my parents have been moved out of the house for a few years. At least four years have passed for all of these finds. Not sure which are still edible/palatable, and which I should just pour out?
Open bottles:
Kahlua (2012) ~20% remaining, fairly recent. Was probably from a party or something...
Vodka (2011) Unflavored $15 potato vodka
Decanter of unknown whiskey/bourbon. (about a liter of this)
Probably just jack or jim.. Sealed with beat up looking cork.
Large plastic jug of Canadian whiskey. Again about a liter.
2007 bottle of white wine that was beneath the bar on it's side. Can get details if interested.

So is it worth keeping this around for mixed drinks for guests? Pour down the drain as they're going to taste like crap? I'll probably keep the decanter and just get a new seal, but is any of the liquor still worth a damn?
Total cost is probably only around 40 bucks but why throw away money...

 

[WayFrae]

No way to know until you taste it! Personally, as long as there isn't gunk floating around in the bottles I would at least taste them.

 

[TxBigHops]

I would probably toss the Kahlua. It's lower in alcohol and has a lot of sweetness that would probably go bad over that time frame. But as far as the vodka and whiskeys, I agree with WayFrae. The only way to know if they're any good is to try them.

It wasn't clear if the wine was opened or unopened. If opened, it's trash for sure. If unopened it sounds like it was properly stored on its side. So it's going to depend on if it's a wine that ages well, or is intended to be drank young, and if it was exposed to high temperatures or a wide temperature range? You can either do your own research, or post more information here. But once again, the only way to know for sure is to pop the cork and drink it. I probably wouldn't bring it out at a dinner party where you're looking to impress anyone, or don't have a backup.