Pumping up that IPA and APA with some late addition hopping
Shawn Kerr/Brewer, Beer Geek, and all-around classy guy
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I wear two hats, science teacher by day (for now) and brewer over here at what I like to call the 12 Gates test labs. It’s such a paradigm shift taking one hat off and putting the other on in so many ways – work attire is drastically different, typical work conversations are surely not the same, and let’s be honest, I doubt it would be appreciated if I was making beer for my students. Now for you, the public, I am pretty sure you’ll appreciate my efforts. Here is another drastic difference though, tardiness. Nothing gets me going more than a student that walks into class ten minutes late, but when it comes to brewing don’t be afraid to be late – at least when we’re talking hops.
When I first began brewing it was the standard IPA hop schedule: lots of hops at 60 minutes (crank out that bitterness and make the back of the drinker’s tongue smack with hop acidity), toss a bit in for flavor and aroma, then chill. Thankfully in the brewing world we are getting a little more understanding about tardiness, more so than in education. When I brew an IPA or APA, especially when focusing on the ever-popular West Coast-style I focus on late additions and post-kettle hopping in order to fulfill the craving for those pumped up hop flavors and aromas.
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These late additions to the hop schedule are critical to getting that delicious flavor, but balancing the right hops is crucial. When looking to design a recipe I look for hops that yield high alpha-acid efficiencies (high alpha-acid means higher IBU counts with less vegetal matter in your kettle), and lower cohumulone percentages. It’s the cohumulone that leaves that lingering palate-smacking bitterness behind on the back of the drinker’s tongue. Lower cohumulone percentages allow you to taste the hops without getting punched in the mouth – nobody likes a punch in the mouth, unless maybe you’re a sadist.
With our newest test batches we are experimenting with some of my favorite hops, as well as some newer varietals to my repertoire: Amarillo, Centennial, Citra, Summit, Galaxy (when we can get these gems), and many others. The goal is common though – to give you, our everyday judges, the opportunity to taste all the unique and delicious flavors these hops offer.