Wine drinkers don’t need to be an expert in order to enjoy the beverage but a sommelier has revealed one common mistake people are making – and how to avoid it.

Warner Boin is a sommelier and has revealed why wine lovers should never put the cork back on an unfinished bottle.

“If you were to put the cork back in a bottle of wine that’s half empty, you’ll see the oxygen and corks are porous,” Boin said.

Porous means the cork has minute holes that allow oxygen to flow through the item, meaning even more air will get into the half-empty bottle.

Too much oxygen in a bottle of wine can destroy the complex flavors in the bottle of wine.

Warner offered an alternative way to close the bottle of wine without it being exposed to the elements.

“What you really want to do is reduce the oxygen to wine ratio,” Warner said.

“I recommend a mason jar. All you have to do is take whatever wine you have left over and pour it into the mason jar – or any kind of airtight container.”

She said in desperate times she has used a kombucha container that she cleaned out.

All people have to do is seal the container with a lid and the wine will be protected.

The video has clocked up more than 2.5 million views, with hundreds thanking Warner for her advice.

“This is the mason jar meal prep content I’ve been waiting for,” one social media user commented on the clip.

Another joked: “Leftover wine. I’ve read about it but never experienced it. I thought it was an urban myth!”

“AND! Party bonus you can just drink it right out of the jam jar. ‍️#KeepinItClassy,” another user commented on the insightful video.

Warner said it was a trick that she swore by and would continue to recommend as it kept the wine fresh for a handful of days after initially opening the bottle.