NEWBERG, Ore. -- If you drink wine, you've probably noticed a new trend. More and more wineries switching from corks to screw tops.

But do those screw-on caps have an impact on the quality of the wine? Harry Peterson-Nedry says they do and they actually make the wine better.

Peterson-Nedry is the founder and co-owner of Chehalem Winery in Newberg and has been using screw caps on all of his wines since 2008.

The reason? He says research shows they preserve wine better than traditional corks.

Peterson-Nedry spent the last year touring the country educating winemakers and wine buyers about the benefits of screw caps.

On Wednesday, he was back in Newberg teaching his neighboring winemakers about the research. A chemist before he was a winemaker, Peterson-Nedry has been studying the effect screw caps have on wines for the last 22 years.

"They're technically superior at keeping oxygen out," he said.

He says his decades of research discovered that the less oxygen that gets into wine, the better the wine ages. In addition, he points out, screw caps eliminate the problem of cork taint.

But winemakers will tell you, it's not all about science. When it comes to wine, it's often about the experience.

"People are used to corks as a tradition and the (pop) of a cork is the start of a celebration," said Jim Prosser, owner of J.K Carriere Wines.

Prosser uses both screw tops and corks He admits, he likes the tradition of the corks but thinks screw tops may be the wave of the future.

And we, the wine drinkers, may have to learn to ride it.

"At a party you can always find another way to announce it other than a pop," he said. "Maybe a loud whistle."