The coffee beans are not fresh, the flow rate is faster

The coffee beans are not fresh, the flow rate is faster

Coffee is one of the most popular drinks in modern society. However, for those who really love coffee, they pay more attention to the various factors required for a good cup of coffee. One of the key factors is to use fresh coffee beans. When the coffee beans are no longer fresh, they will affect the change in water flow rate during the brewing process.

First, let us understand why freshness is so important to the brewing process. When coffee beans are just roasted, they contain a lot of carbon dioxide gas. These gases are gradually released after contact with air, and they will form an appearance and texture called "fluffy".

This fluff allows water to pass through the coffee grounds more easily, creating an even and steady flow rate during the brew. However, over time and with exposure to air, the carbon dioxide is released and the fluff disappears.

When coffee beans are no longer fresh, they become denser in appearance and texture. This means that it is more difficult for water to pass through the coffee grounds during brewing, resulting in a faster flow rate. In this case, the water may pass through the coffee grounds too quickly and fail to fully extract the flavor and aroma of the coffee.

Influencing factors

In addition to freshness, there are other factors that may also affect the change in flow rate. The first is the grind size. Different grind sizes can produce particles of different sizes, which have a direct impact on the water flow rate during the brewing process.

If the coffee beans are ground too fine, the particles are easily blocked and the water flows slowly; on the contrary, if the particles are too large, the water can pass through more easily and the flow rate is faster. Therefore, when choosing the right grinding degree, you need to adjust it according to your personal taste and brewing equipment.

Another influencing factor is what kind of brewing equipment is used. Different equipment has different designs and working principles, so the requirements for water flow rate will also be different.

Solution

If you find that your coffee beans are no longer fresh and the flow rate is increasing, there are several solutions you can try. The first is to choose coffee beans that are fresher. Buy coffee beans that have been roasted recently, and try to avoid buying products that are expired or have been stored for too long.

The second step is to adjust the grinding degree. According to personal taste and brewing equipment, adjust the appropriate grinding degree to obtain a more stable and uniform water flow rate.

The last step is to choose the right brewing equipment. Choose the equipment that suits your needs according to your personal preferences and needs, and follow the instructions when using it.

in conclusion

In summary, when coffee beans are no longer fresh, they affect the change in water flow rate during the brewing process. This can cause the water to pass through the coffee grounds quickly and fail to fully extract the coffee flavor and aroma.

To solve this problem, we can choose fresher coffee beans, adjust the grinding degree and choose the right brewing equipment. This can ensure a stable and even water flow rate, resulting in a better cup of coffee.