Beginners in pour-over coffee often come to FrontStreet Coffee and ask how to determine the grind size for each coffee bean, what effect grind size has on coffee extraction, how to tell the coarseness of coffee grounds at home, and so on. In this article, Front Street will talk about [more…]

The grind size for pour-over coffee is one of the key variables that determines the success or failure of extraction. The coarseness of the grounds not only affects how quickly hot water passes through the coffee bed, but also directly influences the release ratio of acidity, sweetness, and caramelized compounds. Drawing on the hands-on experience of Front Street Coffee, this article explains how grind size affects extraction, the relationship between roast level and carbon dioxide, and offers grind recommendations and water temperature pairings for medium-light and medium-dark single-origin beans, as well as how to use a 0.85mm No. 20 sieve or observe the flow rate to judge whether the grind is appropriate, helping beginners build a reproducible approach to adjustment. [more…]

In coffee brewing, the grind size has a crucial impact on flavor. If the coffee grounds are too coarse, extraction will be insufficient and the taste will be weak; if too fine, it easily brings out bitterness. This article will systematically sort out the grind size standards corresponding to three brewing methods: pour-over, espresso, and moka pot, and provide extraction ratio and time references. The pour-over section will distinguish the grind pass rate, water temperature recommendations, and sieving verification methods for medium-light and medium-dark roasted beans; the espresso section explains the extremely fine grind and adjustment logic under 9 bar high pressure; the moka pot section introduces the suitable grind range and bean selection approach under 1.5-3 bar pressure, while retaining Front Street Coffee's practical data and product recommendations, making it convenient for coffee enthusiasts to adjust by comparison. [more…]

Grind size is the key variable that determines the success or failure of a cup of coffee's flavor. Facing the 1 to 10 settings on a grinder, which number actually represents the finest? And how should different brewing methods match grind coarseness? Starting from Front Street Coffee's hands-on experience, this article systematically sorts out the mechanisms by which grind size affects extraction efficiency, compares the grind standards for common brewing methods such as espresso, pour-over, siphon, and French press, and focuses on explaining grind recommendations for medium-light and medium-dark single-origin beans in pour-over scenarios, water temperature pairing, and how to use a 0.85mm No. 20 sieve to precisely calibrate grind size, helping coffee enthusiasts establish clear adjustment logic. [more…]

There are many factors that affect the taste of coffee. During the brewing process, the factors that influence coffee include the coffee-to-water ratio, grind size, water temperature, etc. Among them, grind size can be said to be extremely important. There is a saying in the industry: "You can buy a cheaper coffee machine, but the grinder must be the best." It must be said that grinding really has an [more…]

In coffee brewing, grind size is the key variable that determines the direction of flavor. The same coffee beans, when used in a siphon, cold drip, French press, or cold brew, require different particle coarseness and coffee doses because of their different extraction principles. This article systematically sorts out the coarseness standards and dosage recommendations for siphon coffee grounds, and compares the reference grind size ranges for cold drip, French press, and cold brew, helping you find the flavor balance point among different devices. The article also includes practical recommendations from Front Street Coffee; whether you are a beginner or an advanced enthusiast, you can find reliable parameter references here. [more…]

There are many factors that affect the taste of coffee. During the brewing process, the factors that influence coffee include the coffee-to-water ratio, grind size, water temperature, etc. Among them, grind size can be said to be very important. There is a saying in the industry: "You can buy a cheaper coffee machine, but the grinder must be the best." It has to be said that grinding really has an [more…]

Grind size is the key variable that determines the success or failure of a cup of coffee extraction. If the grounds are too fine, they tend to over-extract and become bitter; if the grounds are too coarse, the extraction is insufficient and the flavor is weak. Starting from the practical experience of Front Street Coffee, this article systematically explains the mechanism by which grind setting affects extraction efficiency, sorts out the grind ranges corresponding to different brewing methods such as espresso, pour-over, and French press, and focuses on explaining the setting of the EK43s grinder in the pour-over scenario—medium-light roast beans are recommended at 10, and medium-dark roast beans at 10.5. It also introduces the specific operation of using a 0.85mm No. 20 sieve for sifting verification, helping coffee enthusiasts quickly judge and correct the grind size, so that every cup of coffee can consistently present the ideal flavor. [more…]

What is the first step in brewing coffee? Grinding beans. In recent years, with the rise of the specialty coffee wave, more and more people have come to enjoy drinking coffee, and at the same time, more and more people hope to fully experience the beauty and leisure of drinking coffee, so they choose to buy coffee beans and brew them at home. And so at this point, a [more…]

Coffee beans must be ground to release their aromatic compounds, but different extraction methods and devices have vastly different requirements for grind size. Too coarse or too fine will throw the flavor off balance, so is there a generally accepted reference standard? This article uses the industry-standard cupping grind parameters as a baseline and examines, one by one, the suitable grind ranges for the French press, pour-over, cold drip and cold brew, siphon, espresso machine, and moka pot, while explaining how factors such as roast level and water temperature affect the final choice. Drawing on everyday brewing experience, Front Street Coffee offers practical sieve-passing recommendations to help coffee lovers find a grind plan suited to their own equipment. [more…]

The grind size of coffee directly determines the contact area between water and coffee grounds as well as the extraction rate, thereby profoundly influencing the flavor profile of the final cup. However, when faced with different brewing devices and roast levels, how to find the right grind size has become a challenge for many coffee enthusiasts. This article draws on the practical experience of Front Street Coffee, first emphasizing the importance of fresh roasting and bean resting, then carefully analyzing the bidirectional impact of grind size on flavor—too fine leads to bitterness, while too coarse results in a weak and bland cup—and provides specific passing rate references for calibration using a No. 20 sieve (0.85mm). It also offers recommendations for matching brewing devices and coffee beans across five levels: extra fine, fine, medium-fine, medium, and coarse, helping readers find their own perfect cup of coffee. [more…]

Which grind size from 1 to 10 is the finest for coffee beans? In most cases, the smaller the number, the finer the grounds. The grind size of coffee beans plays an important role in extracting a cup of coffee. For example, if the coffee grounds are too fine and used for pour-over coffee, it will result in over-extraction, while if they are too coarse, it will result in under-extraction. Secondly, factors such as the beans from each producing region [more…]

The same coffee beans can present a completely different flavor profile when brewed with a different device, and one of the key variables determining the extraction result is grind size. Coffee beans must first be ground to efficiently release aroma and soluble solids, but different devices extract in very different ways, so grind coarseness cannot be generalized. Over-extraction brings out bitter, off-flavors, while under-extraction results in a thin, sour taste, so finding grind parameters that match your device is especially important. Based on Front Street Coffee's hands-on testing experience and using the industry-recognized cupping grind standard—the No. 20 sieve pass-through rate—this article provides recommended grind ranges one by one for the French press, pour-over coffee, cold drip and cold brew, siphon, espresso machine, and moka pot, and explains how roast level, water temperature, and extraction time affect grind adjustments, helping you consistently reproduce a delicious cup at home. [more…]

Bought Starbucks coffee beans but feel puzzled by the grinder settings? Grind size directly determines the success or failure of a cup of coffee. This article uses common everyday items like fine granulated sugar, coarse granulated sugar, sea salt, fine salt, and flour as analogies to help you quickly find the right grind size for pour-over, French press, moka pot, and espresso machine. Beans of different roast levels have different densities, so the same extraction method requires different grinds. Front Street Coffee will guide you through understanding the particle size range corresponding to each grind state, and why light-roasted beans need a finer grind while dark-roasted beans need a coarser grind, so you no longer have to agonize over grind size. [more…]

The coffee grind size directly determines the contact area between water and coffee grounds, thereby affecting the final flavor expression. This article begins with coffee bean freshness management, explaining resting time and the optimal drinking window, then analyzes one by one the taste differences caused by grinding too fine or too coarse. It also provides a specific method for calibrating grind size using a No. 20 sieve, along with a five-level grind classification that can be referenced even without buying a sieve. Combining the brewing practices of Front Street Coffee, the article recommends corresponding grind sizes for different roast levels and brewing devices, helping enthusiasts find the coarseness standard suited to their own taste. [more…]

Grind size is one of the core variables that determines the direction of coffee flavor. If the grounds are too coarse, flavor compounds are under-extracted and the coffee tastes thin as water; if the grounds are too fine, bitterness and off-flavors are over-released, throwing the cup out of balance. It is often said in coffee circles that "the grinder is more worth investing in than the coffee machine," which shows just how critical grinding is. This article systematically covers the medium-fine and medium-coarse grind standards for pour-over coffee, the practical method of sifting grounds with a 0.85mm sieve, the ultra-fine grind required for espresso under 9 bar of pressure, and the grind range for the moka pot that falls between the two. It also draws on Front Street Coffee's brewing experience to offer water temperature recommendations for different roast levels and espresso blend bean recommendations. [more…]

Grind particle size is one of the key variables that determines the direction of coffee flavor. Starting from the practices of Front Street Coffee, this article systematically reviews the influence of grind size on extraction efficiency in pour-over coffee, the grind standards suited to medium-light and medium-dark roasts respectively, and how to use a 0.85mm No. 20 sieve to test the pass-through rate. It also extends to the extremely fine grind requirements of espresso, explains the effect of the grinder burr spacing on extraction time, and provides the specific extraction parameters and flavor description of Front Street espresso. In addition, the article also explains the relationship between the choice of Moka pot coffee grounds coarseness and the oils it produces, helping coffee enthusiasts find a grind plan suitable for their own equipment at home. [more…]

Grind size has a decisive influence on the final flavor of a cup of coffee: if the grounds are too fine, over-extraction is likely; if too coarse, under-extraction may occur. Faced with the 1-to-10 settings on a grinder, many coffee enthusiasts don't know how the numbers correspond to coarseness, nor are they clear about what grind level to choose for different brewing methods. Drawing on the practical experience of Front Street Coffee, this article systematically sorts out the standards for coffee grind size, the appropriate grind levels for common brewing methods, and the reference values for the EK43 grinder. It also explains in detail how to use a 0.85mm No. 20 sieve for sieve verification, helping you accurately judge and adjust grind size at home, so that every cup of coffee can consistently present its ideal flavor. [more…]

Many friends who have just opened a café or bought an espresso machine for home find that when they take the espresso beans they bought and follow the parameters provided by the seller, the espresso they make has no crema, or is very weak, or is very bitter. When this happens, the only thing we can change is the grind of the coffee beans. [more…]

Grind size directly determines the extraction direction of a cup of coffee: too fine a grind easily leads to over-extraction and bitterness, while too coarse a grind may result in under-extraction and a weak, bland flavor. Many grinders on the market mark their settings from 1 to 10, but the corresponding coarseness varies across different models. A smaller number usually means a finer grind, but in practice, you need to judge based on your brewing method. Drawing on the hands-on experience of Front Street Coffee, this article sorts out the grinding ranges for common brewing methods such as espresso, pour-over, siphon, and French press, explains whether medium-light roast and medium-dark roast coffee beans are better suited to a medium-fine or medium-coarse grind for pour-over, and provides specific steps for using a 0.85mm No. 20 sieve to check the passing rate, helping coffee enthusiasts find the right grinding parameters. [more…]