Behind the Scenes: Unknown Variable

This Cohesion collaboration has been a long time coming. Weβve known Eric since Cerebralβs early days and have abundant respect and appreciation for Cohesion. Eventually, our mutual love of lager was bound to bring us together.
Cohesion crafts perfectly executed traditional Czech lagers while we brew modern interpretations of classic styles. To bring our two worlds together, we decided to make a traditional Czech lager with one experimental ingredient.
Our first challenge was figuring out how to execute a decoction mash on our system. In a nutshell, decoction mashing involves removing part of your mash, boiling it, and then returning it to the mash tun. Itβs a traditional technique that creates specific malt characteristics and flavors. Our new Cru brewhouse is a beautiful upgrade from our original, but it wasnβt designed for this. With Ericβs guidance, we found a method: we manually transferred mash into buckets that were dumped into the kettle to boil. An external pump moved it back into the mash tun, and the rakes mixed everything together. Itβs always an accomplishment to explore new (to us) techniques.
The grain bill is 100% Troubadour Maltings Super Pevec Pilsner Malt and we hopped exclusively with Czech Saaz. We diverged from tradition by using a new thiolized yeast strain from Omega to ferment the beer. Whole cone Saaz in the mash built more thiol precursors for the yeast, and we couldnβt be more surprised with the results. After weeks in the foeder, this yeast transformed an old-world hop into something intensely fruity. Weβre getting notes of Guava, Papaya, and Sauvignon Blanc.

In the interest of additional experimentation, we decided to fill two Grenache puncheons with this lager. Weβre not sure what to expect, but weβll be eagerly waiting to see how these barrels develop.
Collaborating with friends in the industry is one of our favorite things to do – simply because blending different perspectives always yields unique and interesting beers. Itβs a pleasure to taste the product of our combined efforts and learn something new from each other along the way.