How do you liven up flat beer?

* Flat beer is missing carbonation: The bubbles in beer are what give it its crispness, its head, and its overall lively character. Once the CO2 is gone, the beer will taste stale and dull.

* Flavor is affected: Carbonation helps enhance the flavor of beer by bringing out aroma compounds. Without it, the beer can taste muted and bland.

So, what can you do?

* Don't force it: It's best to accept that the beer is flat and move on.

* Try adding something: If you're desperate, you can try adding a splash of soda water or a citrus wedge. This won't restore the original carbonation, but it might add some brightness to the flavor.

* Use it for cooking: Flat beer can be used in recipes like beer bread or braises. The alcohol will cook off, leaving behind a subtle flavor.

* Learn from your experience: Pay attention to how you store your beer to avoid this happening in the future. Keep it chilled, upright, and avoid excessive shaking.

Ultimately, the best solution is to prevent flat beer in the first place!