By Kate Hayes, Sr. Associate for Product Education

Why does Prairie Berry Winery choose Stelvin (screw caps) closures as opposed to cork? We want every bottle you open to taste as great as it did in our Tasting Room. Screw caps ensure that the wine you drink at home will taste the way the winemaker, in our case Sandi, intends it to taste. How does a screw cap accomplish all this and more? Let’s talk cork.


Natural cork comes from tree bark and Mother Nature did not create all trees equally! As the demand for wine has increased exponentially over the past two decades, the cork supply has remained limited. That means that wineries are having to use cork that would have been passed over for quality reasons in the past. Cork taint (TCA or trichloroanisole) is a bacteria that can live in cork tree bark. If a cork is not fully processed and cleaned, this bacteria can live in the cork and spread to the bottle of wine it seals.


Many wine consumers have worried about the switch from cork to alternative closures. The biggest question on wine lovers’ minds: will the wine age properly? For years, wine has relied on the porous nature of cork to provide a small amount of air for the wine to age. And while some wines are meant to age, a whopping 96% of the wines produced today are created to be enjoyed within the first 36 months of bottling. Why risk TCA when a screw cap does a better job of keeping your wine in good shape?


So, we love our screw cap closures. They keep Prairie Berry’s wine healthy, happy, and ready to drink. Also…it doesn’t matter if you remembered to bring a corkscrew!