The secrets of hops aromatic oils
Welcome, beer lovers! Today we are going to enter the fascinating world of aromatic oils contained in the hops. These little heroes of beer elaboration not only add bitterness, but are also responsible for those wonderful aromas that make us sigh in each sip.
What are aromatic oils?
These magical oils contain more than 500 flavor compounds, many of which suffer impressive transformations during the process of elaboration and aging of beer. The brewers usually concentrate on alpha acids, those who are responsible for the bitterness that we appreciate so much, but aromatic oils are the true protagonists in the symphony of aromas of modern beers.
The stars of the aromatizing: Who are they?
In recent years, there has been a turn to the most subtle: aromatic oils of the hops. These compounds provide the characteristic aroma and flavor profile that we worship in artisanal beers, especially in the India Pale Ales (IPA) that have conquered the world.
The difficulties of extracting aromas
The problem is that these oils are elusive. They have a tendency to volatilize and are not very soluble, which means that they do not work well during boiling. To maintain their aromatic punch, most brewers choose to add them in processes such as whirlpool or Dry Hopping.
The three kings of aromatic oils
While there are dozens of aromatic oils in the hops, there are three that take the palm in terms of percentage and fame. Let’s talk about them.
1. Myrceno: the king of fresh aromas
Myrcene is the thief of hearts, representing between 30% and 60% of the total oils of many hops. With flavors that range from herbaceous to resinous, this oil disappears in most ebullicions, so it is more effective in Dry Hopping. Its presence is vital, especially in varieties such as Cascade.
2. Humuleno: The land of flavors
With a percentage that varies from 12% to 50%, the humulene is known for its earthly and spicy notes. Although it has a higher boiling point, its volatility makes it more suitable for whirlpool or Dry Hopping, where its authenticity is preserved. It is a key presence in traditional hops such as the nobles.
3. Caryophyllene: A touch of spicy
With between 6% and 15% in the mixture, Caryophyllene is found in aromatic plants such as nails and rosemary, and their notes stand out for their woody and spicy character. It is the ideal oils to add a deep nuance, but like its predecessors, it is best presented in Dry Hopping techniques.
What will the future bring us in aromatics?
In the next installment, we will explore more aromatic oils, perhaps discovering those less known but equally important. So, keep the hops fresh and are attentive to new surprises.
Thank you for accompanying me on this journey through the flavors and aromas of hops. If you want more tips on the elaboration of beers, do not hesitate to subscribe to my newsletter or listen to my podcast, where we will continue to discover the wonderful world of beer.
