The Wine Foundry Share-a-Barrel

What's in the box: A share of wine from a barrel made with fruit from Napa or Sonoma vineyards, made to your group's choices.

The Wine Foundry is a Napa winemaking facility that lets customers craft their own wine by the barrel, using fruit from Napa and Sonoma vineyards. Share-a-Barrel is its option for splitting a barrel with friends, which is a smaller commitment than taking on a full barrel alone. The company also offers custom labeled wine for businesses and support for people who want to launch their own brand. This is not a typical monthly box. You are buying into a winemaking project, and the reward is a share of wine made from grapes you helped choose. The site publishes a 2026 Vineyard Guide for comparing fruit sources and promotes 2026 harvest vineyard and winemaking camps, so hands-on involvement is available if you want it. The facility is at 45 Enterprise Ct. in Napa, with a listed phone line, weekday office hours, and an FAQ page. The site's front page does not say what it costs, how many people share a barrel, how many bottles each person gets, or how long finished wine takes. Barrel aged wine usually needs many months or more, so expect a long wait. Contact the team for full terms before you commit.