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Why does hand-brewed espresso appear salty? How to adjust for insufficient coffee extraction?

Published: 2026-05-23 Author:

Last Updated: 2026/05/23, Yesterday, a friend reported to Qianjie when buying coffee beans that the coffee he brewed would occasionally have a light salty taste and asked if this was a normal phenomenon. To be reasonable, although we usually only talk about the taste of coffee around sweet, sour and bitter, in fact, there will also be salty taste in coffee. Because coffee beans

Yesterday, a friend reported to Qianjie when buying coffee beans that the coffee he brewed would occasionally have a light salty taste and asked if this was a normal phenomenon. To be reasonable, although we usually only talk about the taste of coffee around sweet, sour and bitter, in fact, there will also be salty taste in coffee. Because coffee beans themselves contain a lot of minerals, such as chlorides, nitrates, sodium, magnesium, potassium, etc. These substances dissolve into the coffee liquor during brewing, giving the coffee a light salty taste. So we can know that salty taste in coffee is a normal thing. Just! Under normal circumstances, as long as there is no problem with the quality of the coffee beans and the extraction of the coffee is normal, it is difficult for us to drink salty taste from coffee. The reason is also very simple. The salty taste in coffee is usually very weak and can easily be concealed by other flavors, especially sweet and bitter.

Therefore, it is normal for coffee to have salty taste, but if you drink an obvious salty taste from coffee, it means that there is something wrong with the beans, water, or brewing methods and parameters you use! Because these are key factors affecting the salty threshold of coffee.

What affects the salty taste of coffee beans? At the bean level, what can affect the salty taste of coffee is still the few pieces: planting, processing, and baking. The environment in which the coffee beans are grown, the maturity of the coffee cherries at the time of harvesting, the fermentation degree and state of the coffee beans during processing, whether the development of the coffee beans is sufficient/deep enough during roasting, etc., these factors will all affect the final delivery. Whether the salty taste in the coffee is strong or light. But because many factors affect not only the salty taste, but also the content of other substances, there are also good and bad. And because everyone is more of the most extreme consumers, who buy cooked beans and brew them at home, Qianjie does not introduce them, as long as everyone chooses high-quality coffee beans to buy. Then some friends may want to ask: "How can I buy good quality coffee beans? "

As Front Street has long shared, as long as we find a reliable supplier of coffee beans, we basically don't have to worry about the quality of the beans. Qianjie Coffee is a very reliable coffee bean supplier. There are flagship stores on Taobao Tmall and other online platforms to buy coffee beans. Understand what I mean ~ At the extraction level, there are only two reasons for coffee to appear obviously salty: one is insufficient extraction. Because coffee doesn't have enough sourness and bitterness to mask the saltiness, we can drink coffee with obvious saltiness.

Another is too high a concentration. When the concentration of coffee is too high, the taste buds will not be able to quickly identify each taste in a short period of time because the taste is too concentrated. Then it will be easy to "integrate" the excessively strong taste into salty taste and package it to the brain, making us feel Coffee tastes obviously salty. Such cases are particularly common in espresso and cold extract coffee, because they are coffees with higher initial concentrations; or high-concentration coffee extracted from deeper roasted coffee beans is also prone to this situation.

How to determine whether the salty taste of coffee is caused by insufficient extraction or too high concentration? In fact, it's very simple. When we taste salty taste in a cup of coffee, we can try to dilute it with water to see if the coffee still has obvious salty taste after the concentration is reduced. If not, it means that it is a matter of concentration. But if there is, it may be an extraction problem;

If it is an extraction problem, then we need to make appropriate adjustments to our extraction parameters at this time, such as fine grinding, increasing the water temperature, extending the extraction time, etc. to increase the extraction efficiency of coffee. So, the above is all the content shared on Qianjie this time. It is worth mentioning that Qianjie Coffee's coffee bean activity is still going on until 12 o'clock tonight, so friends who haven't caught up need to pay attention!!

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FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。