What are IBU’s?

So what are IBU’s and why should I care? IBU stands for International Bittering Unit – the scale used to measure hop bitterness in beer. An IBU is one part per million of isohumulone, an acid derived from hops. If you like the very bitter “bite” of the “Extreme Beers,” a higher IBU would be an indication of that snap.

Ales

  • Pale Ale / Amber Ale – 20-50 IBU
  • India Pale Ale – 40-60 IBU
  • ESB, aka Extra Special Bitters – 28-40 IBU
  • English Brown Ale – 20 IBU
  • Porter – 20-40 IBU
  • Irish Stout – 30-60 IBU
  • Barleywine – 50-100 IBU

Lagers

  • American Pale Lager – 10-15 IBU
  • Pilsner – 25-45 IBU
  • Bock – 20-30 IBU