For coffee lovers, the unmistakable aroma of freshly ground beans is a sensory delight that signals the imminent pleasure of a delicious cup’a. But did you know there is more to this experience. We need to understand what happens if you buy ground coffee as against freshly grinding it yourself every time you brew yourself a cup of coffee. (my favourite is Devan’s Arabica AAA)
Delving into the realm of coffee chemistry reveals that freshly ground coffee beans hold the key to unlocking a heightened coffee experience. (my favourite Burr Grinder is the Baratza)
Apparently, when coffee beans are roasted, they undergo a complex chemical transformation that creates over 1,000 different compounds, each contributing to the aroma, flavour, and overall sensory experience. However, the volatile compounds that contribute to these elements are particularly sensitive to environmental factors, including exposure to oxygen, moisture, and light. Coffee once roasted should be stored properly and kept away from moisture and light.
Recent studies, such as the one conducted by the University of Navarra in Spain, have illuminated the impact of oxidation on the quality of coffee. Oxygen molecules can interact with the volatile compounds in roasted coffee, causing a breakdown of these molecules and resulting in the gradual loss of aroma and flavour. The study also demonstrated that “freshly” ground coffee had significantly higher levels of aroma compounds, showcasing the pivotal role of freshly ground coffee in preserving the coffee’s sensory richness.
A study published in the “Journal of Food Science” delves into the importance of particle size distribution in coffee grounds. Different brewing methods require specific particle sizes to optimise extraction. For instance, espresso demands a fine grind, while French press benefits from a coarser grind. Freshly ground coffee allows for better control over particle size, enhancing the brewing process and leading to a superior cup of coffee.
The science of coffee therefore unveils a captivating narrative of chemistry and physics that intertwine to create a delightful sensory experience. Freshly ground coffee, with its preserved aroma compounds, optimal particle size, and minimised oxidation, stands as a testament to the intricate connection between science and indulgence. So, the next time you grind your coffee beans, remember that you’re not just preparing a cup; you’re unleashing an aromatic alchemy that elevates your coffee journey to unparalleled heights. But make sure it’s “freshly” ground.
The Aromatic Alchemy: The Science Behind the Superiority of Freshly Ground Coffee.
