What to do when the cork breaks?
There is a common misconception that the liquid in the bottle would not be good if the cork disintegrates or breaks. That's simply not true - here's why.
Wine
The cork on wine bottles could break for a couple of reasons. For wines in storage, its age is usually the reason for the cork's condition. But don't worry, the wine will still be good to drink even if the cork breaks! As long as there is no leak for air/oxidation to take place, and the bottle has a seal on top of the cork like most wines do, it will most likely be good.
However, if it's an old wine, make sure to store it properly, ie chilled and in the dark (like in a chiller or cellar). Wines are sensitive and they need to be kept at a proper temperature, humidity, horizontally and away from light.
If the cork breaks while opening,simply push the cork into the bottle and serve the wine. If there are cork bits, just filter out the wine and serve.
And if you want to make sure you don't break the cork of an old wine, use a two-prong bottle opener!
Whisky, Rum & Tequila
For alcohols like whisky, rum and tequila, a broken cork does not matter much as oxidation does not affect hard liquor bottles as much as wine bottles. Chances are, they are all good!