question: What is a good beer pairing for 20hr smoked brisket?
answer: A great choice for 20hr smoked brisket is Black Eyed King Imp - Vietnamese Coffee Edition (Vietnamese Coffee Edition.). Here's the recipe:
  A Vietnamese Coffee Edition. with 12.7% ABV. Uses 9 malts and 3 hop varieties. Brewing tip: Buying top notch coffee beans make a huge difference here. Give them a very course grind to get the most out of them.