How to put the fizz back in flat bubbly

What should you do with those delicious bottles of sparkling wine you can’t quite finish in one go?

Luckily, bubble-lovers are a resourceful bunch and have come up with an incredibly simple trick that will instantly put the fizz back in flat bubbly, and all you need is a raisin. 

To bring back its sparkle, all you need to do is drop a single raisin into the bottle just moments before pouring yourself a glass.

The reason it works is all down to carbon dioxide, which is what gives drinks like champagne its wonderful bubbles.

Once the raisin is dropped in, the remaining carbon dioxide will stick to its ridges before releasing back into the drink as bubbles, thus restoring its fizz.