Astro Lab Brewing Company TOWER CU IPA 6.8% ABV Showcasing the wonderfully rich flavored Strata hop varietal, this IPA packs a juicy and dank punch. On the nose are the tropical fruit notes of mango, passionfruit, and papaya that continue through to the palate with an additional hint of kumquat, and a rich dankness. The mouthfeel is soft, the bittering clean, and the carbonation, moderate.