Is it safe to drink expired keg of beer?

* Spoilage: Beer, even when stored properly, will eventually spoil. This can lead to off-flavors, odors, and potentially harmful bacteria growth.

* Expired Ingredients: Kegs are usually tapped and then left open to the air, which can oxidize the beer. The hop compounds and other ingredients might break down, leading to a stale, undesirable taste.

* Unpredictable Quality: The exact timeframe for when beer goes bad varies depending on the type of beer, storage conditions, and other factors. It's impossible to know how long it's been past the "best by" date on an expired keg.

If you are unsure, it's best to err on the side of caution and not drink it.

If you have an expired keg, you could try:

* Check for visible signs of spoilage: Look for sediment, discoloration, or an off-putting smell.

* Taste a small amount: If it tastes off or has a sour smell, it's best to discard the keg.

* Use the beer for cooking: You could use the beer in recipes where the flavor is less important, like in bread or sauces.

Remember, it's always better to be safe than sorry. If you have any doubts about the quality of the beer, it's best to discard it.