The oiliness of coffee beans refers to the amount of oil contained inside the coffee beans. Generally speaking, coffee beans with high oiliness are considered a better choice because they usually have a richer and more complex flavor. However, not everyone likes high-oil coffee beans, so there is no absolute correct answer as to whether to choose high or low-oil coffee beans.
First, let's look at the advantages of high-oil coffee beans. Due to their higher oil content, these beans produce more aroma and flavor compounds during the roasting process. This makes the concentrated liquid extracted from them (i.e. espresso) have a richer and deeper taste. At the same time, more pleasant and attractive aromas can be released during the brewing process.
However, not everyone likes this strong, rich and challenging taste profile. The descriptions of "low acidity" or "balanced" are often associated with low-oil coffees. In contrast, low-acidity coffees are softer and more balanced. This type of coffee is often used to make espresso and various blended coffee drinks.
In addition, oiliness also has an impact on the roasting process. Beans with high oiliness tend to produce more oil discharge during roasting, which may cause the roasting machine to become dirty and require more frequent cleaning and maintenance. In contrast, low-oil beans produce less oil discharge during roasting.
In summary, the choice of high or low oil coffee beans should be based on personal taste preference. If you like strong, complex and challenging taste characteristics, high oil coffee beans are a good choice. But if you prefer a soft, balanced and low acidity taste, you can consider choosing low oil coffee beans.
