The degree of grinding of coffee beans determines direct brewing, exploring the best powder size

The effect of coffee bean grinding degree on direct brewing

Coffee is one of the most popular drinks in the world, and the degree of grinding of coffee beans is crucial to brewing coffee with the ideal taste and flavor. Coffee beans with different powder sizes affect the contact time and surface area between water and bean powder, thereby changing the content and presentation of dissolved substances during the extraction process. This article will focus on exploring the optimal powder size and analyze the effects of different grinding degrees on direct brewing.

1. Coarse grinding: suitable for dripping, French pressing, etc.

Coarse grinding refers to breaking the coffee beans into larger particle sizes. This powder is suitable for methods such as dripping and French pressing, which require longer steeping time and relatively large particle size to balance the bitter substances in the extraction process.

In the drip method, using a larger particle size can prolong the contact time between water and coffee beans and reduce the extraction of bitter substances (such as caffeine). This can make the coffee taste softer and the acidity more prominent.

In French pressing, the larger particle size can reduce the contact area between water and bean powder, thereby reducing the extraction of bitter substances. The coffee brewed in this way is usually sweeter and stronger.

2. Medium grinding: suitable for hand brewing, drip coffee, etc.

Medium grinding is between coarse grinding and fine grinding. This kind of powder is suitable for hand pouring, dripping, and other methods that require a more balanced taste and flavor expression.

In hand brewing, using medium particle size can achieve better and more uniform infusion, and make full use of the contact area between water and bean powder. This can make the coffee present a good balance, which is reflected in the four aspects of sourness, sweetness, bitterness and astringency.

In drip coffee, medium particle size is used to ensure a long enough soaking time, taking into account the extraction speed and taste. The coffee brewed in this way usually has a more balanced flavor and is suitable for daily drinking.

3. Fine grinding: suitable for espresso, coffee machine, etc.

Fine grinding is the breaking of coffee beans into smaller particle sizes. This powder is suitable for espresso, coffee machines and other methods that require fast extraction and emphasis on flavor details.

In espresso, the use of small particle size allows for quick and efficient contact between water and bean powder, and maximizes the extraction of dissolved substances in the coffee beans. This results in a brewed coffee with a higher concentration and more complex and diverse flavor.

When using an automatic or semi-automatic coffee machine, the small particle size ensures that water flows through the filter without clogging and that the pressure is fully utilized for even extraction. Coffee brewed in this way usually has a rich aroma and full taste.

in conclusion

The degree of grinding of coffee beans has a significant impact on direct brewing. Coffee beans of different powder sizes are suitable for different brewing methods, and can produce coffee with different flavor characteristics and taste performance. Therefore, when choosing the degree of grinding, you need to adjust it according to your personal taste preferences and the brewing method used.

In general, coarse grinding is suitable for methods such as drip filtering and French press, which require a longer soaking time and relatively large particle size to balance the content of bitter substances in the extraction process; medium grinding is suitable for methods such as hand pouring and drip coffee, which require a more balanced taste and flavor expression; fine grinding is suitable for methods such as espresso and coffee machines, which require fast extraction and emphasis on flavor details.

The most important thing is that when exploring the best powder size, we should try different options and fine-tune according to our own preferences. Only through practice and experience accumulation can we find the coffee bean powder size that best matches our taste needs and preferences.