What are aromatic oils and why do they matter?
Imagine that you are baking a cake and only in the end you realize that you forgot to add the vanilla touch. That is what happens with aromatic oils when preparing beer. These oils are responsible for the delicious aromas that we perceive to taste a good IPA. However, not everyone manages to resist the elaboration process. This is where the survival of oils comes into play.
Recent research: Who survives the boil?
Yakima Chief scientists have embarked on an exciting trip to discover which aromatic oils manage to reach the bottle. His approach has been to simplify this complex issue and make it accessible for both rookie brewery and experts. In their study, they measured the resistance of seven key aromatic compounds such as Linalool and Geraniol throughout the elaboration process.
The survival champions
Among the hops varieties, some champions that retain their aromatic oils, even during the most critical stages such as boiled and whirlpool. Names like Centennial, Citra and Mosaic took the gold medal by keeping the aroma intact. However, its best performance is presented when used in Whirlpool or in the Dry Hopping stage, just before bottling.
The hops that prefer the After Party
Some hops, such as sabro and yellow, prefer to relax after fermentation. According to the recommendations of the study, it is better to use them after fermentation fever has passed. This allows them to release their essence in their maximum splendor, adding a delicious touch to the final beer.
Hey, where is the Myrcene?!
One of the great absent in the study was the Myrcene, known for providing that characteristic resinous profile to many beers from the west coast of the USA. Despite being an icon in the beer culture, it has been eclipsed by more fruit trends. Interestingly, some brewers are looking for ways to minimize their impact, since it can overshadow other more subtle aromatic oils.
Cooking principles with hops
If you are planning a new recipe, consider using resistant hops at the height of your fame. The key is to know when to add each one to make sure your beer has the aroma you want. Starting with efficient hops could be the winning strategy to design your next lot.
What is the future of aromatic oils in beer?
Yakima’s findings are just the beginning. In the search to create the most aromatic and complex beers, we have opened a range of possibilities. The science of hops is constantly evolving and there is no doubt that more discoveries are to come. So, brewers, keep your eyes and gustatory papillae open, because the best dressing for your beer may still be discovered.
