Barrel-Aged Impermeable

Brewer's Notes

Our oatmeal stout, dense and creamy, aged for 2 years in bourbon barrels. Six different malts and two kinds of oats are used to make this contemporary version of a pub classic. Lighter in bitterness than traditional American Stout, oatmeal stout is a hat-tip to more English versions of the style. Combined with the vanilla, coconut, and toffee characteristics of 6-12 year old bourbon barrels, this is a powerhouse combo for beer and whiskey lovers alike.

Accolades: Best of California, Whiskey Aged Porter/Stout Category 2021 US Beer Tasting Championships

  • Style: Bourbon Barrel-Aged Oatmeal Stout
  • ABV: 6.5%
  • IBU: 25
  • SRM: 65
Malts: Admiral Kilnsmith I, Premium English Caramalt, Dark Crystal Malt, Chocolate Malt, Black Malt, Flaked Oats, Admiral Clipper Oats
Hops: Centennial
Packaging: Draught Only
Available: Limited Release

Behind The Name

Impermeable rocks are those through which neither fluid, gas, nor Light can pass. Similar to these kinds of rocks, this inky black stout consumes all of the light that tries to pass through your glass. Despite it’s dark and brooding appearance, this bourbon barrel-aged oatmeal stout brings a world of flavor and aroma, with rich notes of chocolate, toasted coconut, toffee, vanilla and fresh coffee, all in a sessionable 6.5% ABV package. All of this is laid over a luxurious malt and oat profile, accentuated by the added viscosity provided by the bourbon barrels.

Barrel Aged Impermeable
Texture Overlay for image
Seismic Beer with Tap handle Seismic Brewer Toasting with Seismic Beer Mountain with stream Seismic brewing equipment Exterioir photo of the brewery Forest photo Canning Equipment Fermentation tanks Trees with Fall colors

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