According to a label filed with the Alcohol and Tobacco Tax and Trade Bureau (TTB), The Brewing Projekt is working on releasing Dome Head, a 7.4 percent ABV sour ale brewed with blackberries, guava, sea salt and vanilla.

The new ale from the Eau Claire, Wis.-based brewery will be packaged in 16-ounce cans.

A message sent to the brewery for additional information was not immediately returned.