Study on the grinding degree of household coffee machines and hand-grinding coffee machines

Abstract: This article explores the differences in grind size between home coffee machines and hand grinders. Home coffee machines usually use pre-ground coffee, while hand grinders require you to adjust the grind size based on the type of coffee beans and personal taste. Adjusting the grind size can affect the taste and aroma of the coffee, so choosing the right coffee machine should take personal taste and preferences into consideration. In general, hand grinders offer more adjustment options for coffee lovers, but home coffee machines are more convenient.

Under the influence of coffee culture, more and more families have joined the ranks of coffee lovers, and coffee machines have become a common small appliance in modern families. In the process of coffee making, the degree of grinding is an important link that cannot be ignored. This article will explore the difference in grinding degree between home coffee machines and hand-grinding coffee machines, and let you appreciate the impact of different grinding degrees on coffee flavor.

1. Grinding degree of household coffee machine

Household coffee machines, especially fully automatic ones, usually have a built-in grinding system. The biggest advantage of this system is its convenience - just pour the coffee beans into the machine and the grinding process will be completed automatically. Due to design limitations, the grinding degree is often relatively uniform and lacks flexibility.

The grinding degree of home coffee machines is usually set to a specification suitable for espresso and medium-to-light roasted coffee beans. Although this setting can meet the needs of most people, it seems a bit monotonous for friends who pursue the ultimate coffee experience. Different coffee beans and different roasting degrees require different grinding degrees to release their unique charm. The uniform grinding degree of home coffee machines makes it difficult to achieve this fine adjustment.

2. Grinding degree of hand-grinding coffee machine

Hand-grinding coffee machines, especially manual bean grinders, provide coffee lovers with more choices. The grinding degree can be adjusted in a wide range and can be fine-tuned according to the type of coffee beans, the degree of roasting and personal taste.

Hand-grinding coffee machines can control the grinding degree more accurately through manual operation. For deeply roasted coffee beans, due to their fragile texture, they are easily broken into powder when ground too finely, so a slightly coarser grinding degree is suitable. For coffee beans from certain high-altitude areas, their internal contents are richer, and a finer grinding degree is required to fully extract their flavor.

During the grinding process, hand-grinding coffee machines can also effectively prevent excessive oxidation. Since the area of ​​coffee beans in contact with the air increases after grinding, the oxidation rate will accelerate, causing the coffee flavor to be damaged. Hand-grinding coffee machines can reduce this process and maintain the freshness and flavor of the coffee beans by precisely controlling the grinding degree and speed.

3. The impact of grinding degree on coffee flavor

Different grinding degrees will have a significant impact on the taste, aroma and flavor of coffee. Too fine a grinding degree will make the coffee taste too strong or even bitter; while too coarse a grinding degree will make the coffee taste too light and lose its layering. The right grinding degree can balance the taste and aroma, allowing the coffee to show the best taste.

For home coffee machines, due to the limitations of their grinding degree, we may need to compensate for this shortcoming by adjusting other variables, such as adjusting the type of coffee beans, roasting degree or brewing method. For hand-grinding coffee machines, due to their high flexibility, we can explore the unique experience brought by different grinding degrees at will.

Whether it is a home coffee machine or a hand-grinding coffee machine, the degree of grinding is an important factor affecting the quality of coffee. For friends who pursue the ultimate coffee experience, understanding and mastering the characteristics and advantages of different grinding degrees is the only way to reach the advanced level of coffee. When choosing a coffee machine, you might as well consider its performance in grinding degree, which may bring more possibilities and fun to your coffee life.