A brand new Dragon Milk’s variant from New Holland Brewing Co. was brewed using “20 years of…wood-aging expertise.”

Dragon’s Milk Solera is a 10 percent ABV imperial stout that has been aged “a series” of American oak foeders, which are large wooden fermenters. The new stout will utilize a fractional blending method known as Solera, a process where the brewers set aside some of the original beer from a batch and then mix it with preceding batches creating a finished product that is a mix of ages.

As the name suggests, the new version incorporates the New Holland, Mich.-based brewery’s Dragon’s Milk Imperial Stout (11 percent ABV) as its base, and will join a multitude of other variants, including Dragon Milk’s 2020 Reserve 1, Dragon’s Milk Reserve Raspberry Lemon and Dragon’s Milk Reserve with Coffee & Chocolate.

According to labels filed with the Alcohol and Tobacco Tax and Trade Bureau (TTB), Dragon’s Milk Solera will be packaged in 12-ounce bottles.

An email sent to the brewery for additional information was not immediately returned.