Is it necessary to brew coffee beans after grinding them? Why?

Coffee beans are one of the main ingredients for making coffee. Do you have to boil the coffee beans after they are ground into powder? This question involves the coffee making process and the impact on the taste. Below we will explore this issue from several aspects.

First, brewing coffee beans to powder can release more aroma and flavor. When we grind coffee beans into powder, its surface area will increase, making it easier for the aroma substances contained in it to be released. During the heating process, these aroma substances will rise with the water vapor and enter our sensory system through the nasal cavity. At the same time, when brewing in boiling water, water molecules come into contact with coffee particles and dissolve the chemicals in them, making the whole cup of coffee full of rich and complex flavor.

Secondly, other important components can be extracted during the boiling process. In addition to aroma, some important chemicals also need to be heated to be fully extracted. For example, soluble colloids become more stable at high temperatures, making the coffee liquid more intense. In addition, boiling can reduce the acidity in the coffee, thereby reducing the sourness of the coffee. These chemical changes are achieved through heat transfer and dissolution.

Finally, the boiling process can also kill some harmful microorganisms. Although most of the microorganisms such as bacteria and parasites have been killed by roasting the coffee beans themselves, some new sources of microbial contamination may be introduced during the powdering process. By contacting the coffee bean powder with high-temperature water and heating it to a boiling state, these potential harmful microorganisms can be effectively killed and ensure that we drink safe and hygienic coffee.

In summary, boiling coffee beans after grinding them into powder is a necessary and important step in making coffee. Doing so not only releases more aroma and flavor and extracts other important ingredients, but also ensures that we drink safe and hygienic coffee. Therefore, when enjoying delicious and mellow coffee, we might as well spend some time boiling and brewing to get a better taste and experience.