Does this look infected? Even if your beers tastes fine, it has some level of contamination. Learn how to find out if your beer is in the clear or if you're one pitch away from disaster.
Written by Chris Colby
Issue: December 2004
IBU calculators most often used by brewers were developed prior to the popularity of adding massive hop additions after the boil. As brewing techniques evolve, the way we measure IBUs should too. A new model, dubbed SMPH, accounts for factors that have previously been overlooked, including separating isomerized alpha acids from auxiliary bittering compounds.
A new wave of yeast strains have recently been developed by yeast labs, using sexual reproduction to mate the best characteristics of our favorite strains. Learn about their potential.