Who doesn’t love a fresh cup of coffee in the morning? For many, coffee is the perfect lifesaver to start the day on a high note. However, did you know there’s one simple trick that can drastically improve the quality of the coffee you brew at home?
As reported by Science Focus, in a recent study published in the journal Matter, a team of researchers found that the internal moisture level of coffee beans can affect the amount of static electricity generated during the grinding process. This means that adding a little water to the beans before grinding can result in a more concentrated and richer espresso.
In a recent study published in the journal Matter, a team of researchers found that the internal moisture level of coffee beans can affect the amount of static electricity generated during the grinding process. This means that adding a little water to the beans before grinding can result in a more concentrated and richer espresso. This process is called “pre-wetting” or “blooming,” where hot water is poured over finely ground coffee beans to create bubbles of CO2 gas released by fresh coffee beans.
“Water not only reduces static electricity, thus reducing the mess when grinding, but it can also have a significant impact on the intensity of the brew and, potentially, the ability to access higher concentrations of flavor,” said senior author Dr. Christopher Hendon, a computational materials chemist at Oregon University. In this study, the researchers involved not only coffee experts but also a volcanologist to understand the process by which static electricity is generated in coffee grinders. Joshua Mendez Harper, a volcanologist from Portland State University, explained that this process is similar to the formation of lightning during a volcanic eruption.
The researchers measured the amount of static electricity generated by grinding a variety of coffee beans and found a relationship between electrification and moisture content, roast color, and particle size. They also found that grinding with water resulted in stronger and more consistent espresso.
How to bloom coffee beans? The blooming process is very easy to do at home. Simply add a small amount of hot water to finely ground coffee beans, let it steep for a few moments to allow the CO2 bubbles to release, then pour the water evenly to brew your coffee as usual. By implementing this simple trick, you can improve the quality of your home-brewed coffee without investing in expensive equipment. By understanding the blooming process and the importance of removing trapped CO2, you can enjoy a more delicious and satisfying cup of coffee every day.