In discussions about pour-over coffee equipment, the dripper often takes center stage, while the filter paper—which performs the critical filtration task—tends to be overlooked. In fact, although filter paper accounts for only a small portion of the cost, it directly affects how coffee flavors are presented—common issues such as "fit" and "papery taste" are inseparable from it. When faced with the three mainstream shapes on the market—cone, fan, and cake—along with options like 01/02 sizes, natural and bleached, and different brands' paper textures, how should one make the right choice? Drawing on Front Street Coffee's practical experience, this article systematically sorts through filter paper styles and shapes, model sizes, bleaching processes, and paper texture differences, helping coffee enthusiasts find the one that better matches their own dripper and brewing preferences. [more…]

For professional coffee knowledge exchange and more coffee bean information, please follow FrontStreet Coffee. How to choose coffee filter paper? How to use coffee filter paper? What types of coffee filter paper are there? Many enthusiasts buy their own coffee beans, use a grinder, and purchase equipment to brew coffee, all [more…]

Front Street Coffee recently came across a uniquely shaped pour-over filter paper—the dual-chamber filter from Spain's Sibarist. Because its interior is divided in two by a partition, netizens have jokingly dubbed it the "double-flavor hot pot filter." The original design intent was to let coffee beans with different characteristics each be extracted separately in a single brew, but at 37.44 euros for 30 sheets—about 9.4 yuan per sheet—it really is staggering as a disposable consumable. Front Street Coffee decided to make a DIY alternative, using two 01-size filter papers in a 02 conical dripper to replicate the dual-chamber structure, and to explore the water temperature and other parameters that need to be considered when actually brewing with this kind of filter. This article will walk you through the dual-chamber filter's construction principle, its official pricing, how to make a DIY alternative, and the core considerations for using it, so you can see whether it's worth buying. [more…]

In the daily routine of pour-over coffee, filter paper is an almost indispensable consumable. But have you ever wondered why you usually need to rinse the filter paper with water before the official pour? Between the common white filter papers and natural wood-colored filter papers on the market, which one should you actually choose? Regarding the origins of filter paper, the impact of bleaching processes on flavor and health, the classification of sizes and specifications, and how different manufacturing processes affect the flow rate, Front Street will sort through all of it one by one in this article to help you choose the right filter paper and get the most out of every sheet. [more…]

When brewing pour-over coffee, filter paper is an unavoidable element. What role does it actually play? How should you choose between white and natural-colored filter paper? Should you rinse the filter paper before brewing? And how do you fix it when the filter paper doesn't fit the dripper? This article starts with the origins of filter paper, sorts through the pros and cons of bleached and unbleached filters, common size specifications, and differences in manufacturing processes, and combines Front Street's practical experience to offer useful advice—helping coffee lovers make a choice that suits them among flavor purity, environmental friendliness, and ease of operation. [more…]

Before making pour-over coffee, many people first take a filter paper, fold it, and place it into the dripper, then add the coffee grounds. What role does the filter paper actually play? And how should you choose between white and natural-colored filter papers available on the market? This time, Front Street Coffee starts from the origin of filter paper, sorting out the pros and cons of bleached and unbleached filter papers, common size specifications, and further discusses how manufacturing processes and filter paper structure affect the flow rate, thereby influencing the final extraction. At the end of the article, combined with Front Street's experience, it offers purchasing ideas that are either more convenient or more environmentally friendly, helping you find a balance between flavor purity, operating habits, and environmental considerations. [more…]

When brewing pour-over coffee, filter paper plays an indispensable role, but do you know its origins and types? Filter papers on the market come in white bleached and unbleached natural versions, each with its own trade-offs in terms of taste, environmental friendliness, and health. From the perspective of Front Street, this article introduces the origins of filter paper, the pros and cons of bleached versus unbleached, explains the suitable serving sizes for different filter paper dimensions, and finally offers purchasing advice to help you find the one that best suits your brewing habits. [more…]

In coffee brewing, the choice of filter paper is far more than just about size and whether it's bleached. Different materials such as wood pulp, non-woven fabric, hemp, or plastic directly affect filtration performance, which in turn changes the coffee's extraction yield and final flavor. This article takes a deep dive into how filter paper material influences filtration effectiveness, compares the pros and cons of bleached versus natural wood pulp filters, and answers which brand is more trustworthy. Front Street Coffee will walk you through how these differences shape the taste of every cup, helping you make a wiser choice. [more…]

Pour-over coffee has become the preferred brewing method for many coffee enthusiasts thanks to its advantages of being clean, free of off-flavors, clear, and simple and safe. This article starts from a comparison of brewing devices such as the French press, the Clever Cup, the AeroPress, and the siphon, and takes an in-depth look at the core principles of pour-over coffee—the three key elements of coffee grounds, filter paper, and hot water. It focuses on revealing the critical influence of filter paper on flavor and explores the feasibility of brewing with boiling water. At the end, using the 2018 Huakui Natural Sidamo as an example, it fully presents the V60 brewing parameters and flavor performance, making it suitable as a reference for readers who wish to improve their pour-over brewing skills. [more…]

Pour-over coffee has become the top choice for many coffee enthusiasts thanks to its advantages of being clean, free of off-flavors, clear, simple, and safe. This article starts with a horizontal comparison of the French press, the Clever Cup, the AeroPress, and the siphon pot, then sorts out the three truly indispensable conditions for pour-over—coffee grounds, filter paper, and hot water—and takes a deep dive into how the filter paper material affects flavor, debunking the common misconception that "boiling water can't be used to brew coffee." At the end, it includes Front Street's recommended Huakui brewing parameters and flavor description, making it suitable reading for coffee enthusiasts who want to systematically understand the logic of pour-over. [more…]

The usual way to make a pour-over blend is to mix different beans together and then grind and brew them as one, but a dual-chamber filter paper launched by Spanish accessory maker Sibarist breaks that convention. The filter has a paper wall down the middle that splits the original bed of grounds into two, letting baristas brew two different coffees at the same time, or the same bean at two different grind sizes, and ultimately fuse a brand-new flavor in a single cup. After the product appeared at the SCA Expo in Chicago, its price was announced: a pack of 30 sheets costs 30.94 euros, or about 8 yuan per sheet, which had plenty of enthusiasts saying they could not bring themselves to pay it. Chinese netizens, meanwhile, saw in its unfolded shape a resemblance to a double-flavor hot pot, and their imaginations ran to a "mandarin duck latte"玩法 in which coffee grounds go on one side, tea leaves on the other, and hot milk is poured through to brew it. [more…]

In coffee brewing, the choice of filter directly influences the flavor direction. Metal filters, with their unique pore size, retain coffee lipids and aromas while offering the advantages of being eco-friendly and cost-saving, but the issue of fine particles passing through cannot be ignored. In this article, Front Street will focus on a 400-mesh metal filter (corresponding to 38 microns), from analyzing its pros and cons to a practical brewing demonstration, explaining in detail how to maximize its strengths and avoid its weaknesses. Compared with paper filters, metal filters allow water to pass through faster, requiring adjustments to the pouring technique; when brewing Yirgacheffe Gudingding, the lipids brought a richer mouthfeel and a longer-lasting aftertaste. If you also want to try brewing with a metal filter, you might as well follow Front Street's steps to find out. [more…]

Brewing coffee at home—paper filters, metal filters, or cloth filters: how exactly should you choose? This article starts with the difference between bleached and unbleached paper filters, explains why you should rinse your paper filter, and lists the weight and feel of several common cone-shaped paper filters for reference. It also compares metal filters, flannel cloth filters, and drip coffee bags by their pros and cons. Whether you're after a clean, crisp cup or want to keep more of the coffee oils and original flavors, you'll find the right filtration solution for you here, and avoid detours when shopping. [more…]

Can filter paper only be used for pour-over? In fact, in cold brew, ice drip, espresso, and even moka pot brewing, filter paper also plays an important role, just with different functions emphasized. This article compiles the practical experience of Front Street Coffee and explains one by one the specific uses of filter paper in different extraction methods: why cold brew needs secondary filtration, what roles the upper and lower filter papers in an ice drip brewer each play, what changes adding filter paper above the puck or at the bottom of the portafilter basket brings to espresso, whether a moka pot should use filter paper, and the correct approach to using filter paper to filter coffee grounds. Whether you are just starting out or want to refine your technique, you can find practical reference solutions here. [more…]

The duration of extraction is directly related to how many substances the hot water carries out from the coffee grounds, and the key to determining the extraction time lies in the penetration speed of the hot water through the coffee bed. Many people think that grind size is the only factor controlling flow rate, but in reality, different drippers and filter papers can also have a noticeable impact on flow rate. In this article, Front Street Coffee first reviews the basic effect of grind size on flow rate, then further breaks down the differences in structure and material among drippers and filter papers from different brands, to help you understand the relationship between flow rate and extraction in pour-over coffee more comprehensively. [more…]

In the making of espresso, fines have always been a love-hate presence. They may bring rich crema, but they can also clog the portafilter basket, slow down the flow, and add bitterness. There are two common methods for removing fines on the market: one is to skim off the surface crema after extraction, which is simple and direct; the other is to pre-place a moistened circular filter paper at the bottom of the portafilter basket. The latter sounds gentle, but does it really not interfere with extraction? Front Street conducted a comparative experiment for this: the same 20 grams of coffee, 40 milliliters of liquid weight, one regular extraction, and one with filter paper added at the bottom. The result was that the cup with filter paper took less time, and both concentration and extraction yield were slightly lower, but the fines almost disappeared, and the taste was cleaner. This shows that adding filter paper is indeed feasible, but the grind or parameters must be readjusted to make up for the lost flavor. [more…]

Many coffee enthusiasts notice during pour-over brewing that almost no oils are visible on the surface of the coffee, which is related to the strong interception capability of paper filters. The oils themselves are rich in oil-soluble aromatic compounds that can enhance the body and finish of the coffee. If you want to retain more oils in pour-over brewing, you can switch to non-woven fabric, flannel, or metal mesh filters, but you need to adjust the grind size or water temperature accordingly to avoid under-extraction. This article uses Front Street Boundary Line Geisha as an example to share the brewing parameters and specific steps for non-woven paper filters, and compares the flavor differences with regular paper filters, helping you brew a richer, fuller-bodied pour-over coffee at home. [more…]

When making espresso, placing a circular filter paper in the portafilter basket may seem like a simple action, yet different placement positions can lead to completely different extraction results. Through multiple comparisons, Front Street Coffee found that laying the filter paper at the bottom of the portafilter basket can intercept fine particles, reduce bitterness, and improve cleanliness, but at the same time it weakens body and shortens extraction time; while placing it on top of the coffee puck can disperse the impact of the water flow, reduce channeling, and make the extraction more even, though the effect is relatively limited. This article breaks down in detail the principles, advantages and disadvantages, and practical considerations of these two methods, helping coffee enthusiasts make more suitable choices when dialing in the grind and serving drinks. [more…]

To brew a great cup of coffee at home, choosing the right method matters more than buying expensive equipment. This article systematically sorts through several common brewing methods—paper filter drip, flannel filter, steam pressure, siphon, cold drip, and iced coffee—explaining one by one their key operating points, grind size, and flavor characteristics. The content covers key details such as equipment selection, coffee-to-water ratio, water temperature control, and pouring technique, making it suitable for coffee enthusiasts who want to advance their skills. Whether you prefer a clean, bright cup or a rich, full-bodied one, you'll find a corresponding brewing approach here. [more…]

In the world of coffee brewing, the choice of filtration medium often determines the flavor direction in the cup. From Turkish coffee, which was mainly boiled before the 19th century, to the filter paper and dripper invented by Mrs. Melitta, to the artisanal use of flannel cloth in Japan, each filtration method carries a different extraction logic. Today, the filter paper, flannel cloth, and metal mesh commonly used in pour-over coffee each have their strengths and weaknesses: filter paper brings a clean and transparent mouthfeel, flannel retains oils and fine particles, achieving a rich and mellow flavor, while metal mesh poses new challenges in terms of pore size and extraction method. Front Street Coffee uses Ethiopian Santa Vini beans for comparative brewing, and by adjusting the pouring technique, reveals the causes of under-extraction with metal mesh and directions for improvement, providing a practical brewing reference for coffee enthusiasts. [more…]