"This recipe may seem overly simple, but that is for a reason. The true purpose of the intentionally basic grain bill and hop schedule is to highlight a truly unique yeast strain. Originally isolated from Omega Yeast's Hornindal Kveik yeast blend, Lutra is a rapidly fermenting yeast strain with an incredible neutral flavor expression within a wildly remarkable temperature range. Fermented at traditional ale temperatures around 68°F, Lutra produces nearly lager-like beers with an exceptionally clean and crisp finish with minimal ester production. On the other end of the temperature spectrum in the low 90°F range, Lutra remains quite clean yet expresses a gentle ester profile that brings to mind the flavors of a traditional Kolsch strain. In addition to its incredibly clean and crisp flavor profile, Lutra is an absolute beast with an insatiable hunger for malt sugars - full attenuation can be achieved in mere days. With lower temps, I have found that this recipe can attenuate in 4 days, while elevated fermentation temperatures pare this down to 3. Of course, there are many factors that influence its performance, but it is a very rapidly fermenting yeast strain to be sure. Ensuring proper oxygenation will give the yeast cells everything they need to chow down on your wort to flip a batch at break-neck speed. Although temperature control is not particularly important, taking this strain up to normally forbidden heat levels will not be a detriment to this recipe. Go ahead, crank this one up and let it rip - you will be surprised at how quickly and cleanly Lutra gets the job done, and then it seems to magically drop out of suspension leaving a relatively clear beer in short order. It may be a "new" Kveik strain to most, but Lutra is certainly a legend in the making." - Brad Segall, Head Development Brewer |
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