GREENSBORO, N.C. - If you've ever had to buy a bottle or two of wine you know choosing the right one is hard, especially since there are so many choices.

Reviewers created the point system based on a 100-point scale to help you out. Wines that are 80-84 points: those are solid. 85-90: very good. And 90 plus: just outstanding wines. Easy enough but 2 Wants To Know found you better be careful with trusting those point labels at the store.

The bottle advertised on the tag and the one for sale on the shelf don’t always match.

For example, there’s a tag on a $79 Pinot Noir advertising it got 91 points in 2011; however the one on the self is a 2012 bottle.

Again and again we spotted the problem tags. Across four grocery stores all across town. And the group Truth In Advertising noticed too.

“It’s incredibly deceptive. And it’s upsetting. And it could lead to you getting ripped off,” said TINA Executive Director Bonnie Patten.

They found some bottles were more than a decade off from what the tag advertised when even one year can make a difference in rating.

"There was a great rating on the tag, but the bottle you pulled out was one year younger than that bottle, and it had been rated as only good. So there was a huge discrepancy in a vintage of only one year," Patten said.

Ben Briscoe WFMY News 2

And what about the quotes from those reviewers? Are you ready for this?

"Sometimes the tags were just pain made up, Wine Enthusiast and Wine Spector said we never said that," Patten said.

Experts at the Rioja Wine Bar in Greensboro explain why it's so important that the year on the tag and the one on the bottle match.

“You can get a lot of variability and a lot of it has to do with the weather. Of course the wine making technic could vary as well,” said Jake Assaf.

So now that the gene is out of the bottle on the shelf tags, what can you do? Rioja recommends going to tastings to find wines instead of using the point system.

"Choose a region or a grape and taste various examples of that region or that grape. That way you'll get sorta a baseline and maybe progress that way," Assaf said.

One more really cool trick I found, this app called Vivino. You take a picture of the bottle's label, and it will put up reviews for that particular bottle. That way you know you’re getting the right information.