My friend Rowan flew back in to Korea sometime on Friday; by Saturday afternoon, he was brewing again already. Now that’s dedication! I invited him over to help me brew up my next beer, a “black IPA” (which may or may not end up being black) I’ve named Castle Black Wildling IPA in honor of a certain TV series Miss Jiwaku and I love. (Neither of us has read the books, though I’m sure we both will eventually.) In any case, I had a few concepts in mind for this beer: Brew up a Black IPA (also known as a …