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Empirical Brewery is at it again with another killer take on a traditional Style! Isotope is a German Altbier, one of the Rhine Valley Ales, and the darker, older brother to Kolsch. Composed of darker malts giving the brew more of a toffee and caramel tone, it is still a very quaffable and easy drinking beer. Empirical's take on the style is just a touch hoppier and Americanized, yet still true to its roots and delcious to it's last drop.
Assertive hop bitterness well balanced by a sturdy yet clean and crisp malt character. The malt presence is moderated by medium-high to high attenuation, but considerable rich, complex, and somewhat grainy malt flavors can remain. Some fruity esters (especially cherry-like) may survive the lagering period. A long-lasting, medium-dry to dry, bittersweet or nutty finish reflects both the hop bitterness and malt complexity. Spicy, peppery or floral hop flavor can be moderate to low. No roasted malt flavors or harshness. The apparent bitterness level is sometimes masked by the malt character; the bitterness can seem as low as moderate if the finish is not very dry. Light sulfury or minerally character optional.