The "50 first Dates" actress, 41, and Kopelman made an official announcement confirming they are divorcing after almost four years of marriage, reported Ace Showbiz.
As seen in Carmel Road's Instagram post, she was all smiles while introducing the new rose.
"Hi, I'm Drew Barrymore. We're here at the Carmel Road tasting room, so if you're on the Carmel coastline, please come visit us here. It's a gorgeous place to be. Cheers!"
In another video, Barrymore also appeared cheerful as she poured wine for fans.