Front Street Coffee was recently asked: Does the red wine process mean soaking coffee beans in red wine? Will the finished product contain alcohol? In fact, the red wine process simply borrows the idea of wine fermentation to process coffee cherries; it does not involve soaking in red wine. During fermentation with the mucilage, a trace amount of alcohol is indeed produced, but after high-temperature roasting it has long since evaporated completely, so there is no need to worry about residue. In this article, Front Street Coffee takes the red wine process coffee beans from Panama's Hartmann Estate as an example, from the estate's background, the characteristics of the Catuai variety, and the operational details of controlled fermentation, to the roasting curve, cupping report, and V60 brewing parameters, to fully break down how this coffee with vinous notes is born. [more…]

Is red wine processed coffee made by soaking the beans in red wine? Does it contain alcohol? These are common questions among many coffee lovers. In fact, this processing method borrows the fermentation logic of wine-making, rather than directly soaking coffee beans in red wine. In this article, Front Street Coffee takes you deep into the red wine processed Catuai coffee beans from Hartmann Estate in the Volcan region of Panama: from the estate's background and the variety's origins, to the specific controlled fermentation process and flavor performance. We also share Front Street's roasting curve, cupping results, and V60 staged pouring parameters to help you understand what makes this bean so unique. [more…]

In recent years, an increasing number of specialty green coffee beans processed with special processing methods have appeared on the specialty coffee market. Is this really something to be happy about? Front Street Coffee believes that special processing methods were originally intended to give the flavor of coffee beans from a certain producing region more distinctiveness. However, as their use has continued to expand, some processing methods today seem to be more about masking the defects of the coffee beans themselves and then selling them at a high price. In fact, all special processing methods have evolved around the three traditional methods: washed, natural, and honey. This article will systematically sort out the most common types of special processing methods on the market, including anaerobic fermentation, barrel fermentation, and red wine processing, and, combined with Front Street Coffee's cupping experience and specific products, analyze their processing procedures and flavor characteristics. [more…]

The Volcán region of Panama has risen to prominence in the specialty coffee world in recent years, and Hacienda Hartmann is truly a pioneer of this land. As a century-old family estate, Hartmann is not only renowned for its shade-grown cultivation and bird-friendly practices, but also shoulders the management of well-known estates such as Hacienda La Mula. This article focuses on Front Street Panama Hartmann Estate Red Wine Process coffee, providing a complete analysis of this unique coffee—which combines red wine fermentation notes with tropical fruit flavors—covering the Volcán region's microclimate, the legendary history of the Hartmann family, the fermentation principles of the red wine process, the green bean characteristics of the Catuai variety, the light-medium roast profile design, and cupping and brewing performance. [more…]

In recent years, red wine processing has attracted much attention in the specialty coffee world. Drawing on the fermentation control concepts used in winemaking, it intervenes in pH, temperature, humidity, and microbial conditions to give coffee beans a rich acidity and complex aroma reminiscent of red wine. This article will start with the flavor differences between lactic acid fermentation and acetic acid fermentation, outline the specific operational process of red wine processing, and combine it with the origin information of Front Street Colombia Red Wine Process—the eastern slopes of the Andes in Cundinamarca Department, a growing altitude of 1,800 to 2,000 meters, and the anaerobic fermentation practice of Remi Sultan in sealed metal containers—to provide coffee lovers with a complete set of flavor descriptions and grinding setting references. [more…]

The unique wine-like aroma and bouquet of cold drip coffee often lead people to mistakenly think that alcohol has been added, but in fact this comes entirely from its production method and low-temperature aging process. However, freshly dripped cold drip coffee often tastes thin or even astringent, and needs to be aged in the refrigerator to reveal a smooth, rich flavor. So how long exactly should cold drip coffee be left before drinking? Why does it develop a wine-like flavor after being stored for a long time? And why can it not be stored indefinitely? Starting from Front Street's production experience, this article explains in detail the principles behind the changes in cold drip coffee from production to aging, and from astringency to vinous aroma, and gives recommended drinking periods to help you better enjoy this cup of slow-brewed coffee. [more…]

Friends who often drink single-origin coffee have surely experienced the scent of red wine, champagne, or whiskey rising from the cup. These boozy aromas are already commonplace in specialty coffee. But many people new to coffee worry: after drinking a cup of coffee with a strong wine flavor, can I still drive? The answer is that there is no need to worry—pure single-origin black coffee contains no alcohol. So where exactly does this wine aroma come from? In fact, it follows the same logic as strawberry flavor coming from strawberry aroma and orange flavor coming from orange aroma—after roasting, coffee beans generate certain aroma compounds identical to those found in alcoholic beverages, and together with the assistance of taste and mouthfeel, this creates a wine association in our minds. It is worth noting that not every coffee can present a wine aroma; this is closely related to the coffee's growing environment, varietal genetics, and subsequent processing methods. This article will systematically sort out the ins and outs of wine-like flavors in coffee, from the causes of the aroma to the factors of cultivation and processing. [more…]

Ethiopia, as the birthplace of Arabica coffee, typically relies on washed or natural processing, making honey processing already rare, while red wine processing is even more of a rarity. The Ethiopia·Deli that Front Street Coffee is sharing this time comes from the Guji region, uses red wine processing (i.e., carbonic maceration), features the local native variety Heirloom, is grown at an altitude of 2000-2200 meters, and is graded G1. This article will guide you through the terroir conditions of the Guji region, the principles and characteristics of red wine processing, and include Front Street Coffee's roasting curve and pour-over recommendations to help you gain a comprehensive understanding of this uniquely flavored coffee. [more…]

What do the labels commonly seen on coffee packaging—natural, washed, honey—actually mean? This article focuses on the natural process and its innovative offshoot, the red wine–style natural process. Starting from the structure of the coffee fruit, it breaks down in detail the steps of the natural method, its cost advantages, and defect risks, and further explains how the red wine process uses controlled fermentation to enhance sweetness, cleanliness, and complex acidity. The article also draws on specific products such as Front Street Red Cherry, Huakui, ALO, and the Panama Hartmann Estate to show how traditional natural and red wine natural coffees actually perform in aroma and mouthfeel, helping coffee lovers understand more clearly how processing methods influence the flavors in the cup. [more…]

Luckin Coffee's recently re-released Red Wine Americano has sparked widespread discussion. This new product, which combines red wine flavor with coffee, has polarized reviews due to its unique taste. Some consumers have shared "warning" experiences on social media, describing its taste as hard to accept; meanwhile, other customers say they enjoy this rich flavor combination. Due to the large number of negative reviews, some store employees have handwritten notes asking customers not to leave negative reviews lightly, triggering discussions among netizens about the brand's review system and store responsibilities. This article will sort out the whole incident, consumer feedback, and the controversy surrounding the review mechanism. [more…]

In coffee flavor descriptions, wine-inspired terms such as red wine, champagne, and whiskey are common, and many consumers wonder: does coffee contain alcohol? Can you drive after drinking it? In fact, these wine-like aromas come from the aromatic molecules in the coffee itself, not from added alcohol. From the perspective of Front Street, this article systematically sorts out the sources of wine-like aromas in coffee, focusing on the effects of processing methods, roast level, and extraction method on the expression of wine-like aromas, and explains why cold brew, ice drip, and iced brewed coffee can present fruity wine flavors. At the same time, readers are reminded to distinguish between black coffee and specialty coffee drinks, to avoid the risk of drunk driving caused by alcohol contained in specialty coffee drinks. [more…]

The red wine process is a method of processing green coffee beans that draws on winemaking concepts, and currently only a few estates in Colombia have successfully commercialized it. Depending on the fermentation environment, it can be divided into three types: acetic acid fermentation, lactic acid fermentation, and mixed fermentation, each presenting distinctly different flavor characteristics. At the same time, the washed method and the semi-washed method (honey process) remain the most mainstream processing methods in the specialty coffee field, and many of Front Street Coffee's representative beans use these techniques. This article will systematically sort out the classification and flavor performance of the red wine process, and compare the processing flows of washed and semi-washed methods, to help coffee enthusiasts more clearly understand the impact of processing methods on the flavors in the cup. [more…]

The red wine process is an innovative green bean processing technique originating from Colombia that precisely shapes the acidity and sweetness of coffee through artificially controlled fermentation conditions. This article provides a detailed overview of the historical background, scientific principles, and specific operational procedures of this processing method, and takes an in-depth look at the origin information, flavor characteristics, and pour-over recommendations of Front Street Coffee's Colombia Nine Suns Red Wine Process coffee. Whether you want to understand the difference between acetic acid fermentation and lactic acid fermentation, or you are looking for a bean with prominent sweetness and elegant acidity, this content offers practical reference. [more…]

Many coffee enthusiasts, when tasting ice drip coffee, are surprised by its faint, elusive notes of wine aroma and character, even wondering if alcohol has been added, or if the coffee beans themselves carry a wine-like flavor. In fact, this unique flavor does not come from any added ingredient, but is closely related to the special way ice drip coffee is made. Freshly dripped ice drip coffee is actually thin in flavor and can even taste astringent; it needs to undergo sealed low-temperature aging to become mellow and layered. This article, drawing on Front Street Coffee's practical experience, will analyze the principles behind how the wine-like flavor of ice drip coffee forms, explain how low-temperature extraction inhibits bacterial growth, and why sealed refrigerated aging can produce a fermentation aroma similar to alcohol. It will also compare the uncontrollability of natural fermentation in hot-brewed coffee, helping readers understand how each step in making ice drip coffee affects the final flavor. [more…]

In recent years, coffee processing methods have continuously evolved, from early anaerobic fermentation to red wine processing, and now to oak barrel fermentation, with endless innovative techniques making coffee flavors increasingly diverse. The Honduras Litchi Orchid coffee beans launched by Front Street Coffee are produced using a combination of fine washing and brandy barrel fermentation, originating from the Moca Estate in the Marcala region, at an altitude of 1,500-1,700 meters, with varieties of Caturra and Catuai. This bean shares similarities with the same brand's Sherry coffee beans, with the difference being that Sherry uses whiskey barrels, while Litchi Orchid selects brandy oak barrels. The fermented beans carry a soft lychee and honey sweetness, while integrating brandy notes and oak aroma. This article will provide a detailed introduction to this bean's processing method, flavor performance, and answer the question of whether wine-flavored coffee beans contain alcohol. [more…]

The wine process, also known as the controlled fermentation method or lactic/acetic fermentation method, was developed by a team led by Felipe Sardi of the United States, whose members include biological scientists and ecologists. Strict standards are enforced during picking: underripe cherries below 2%, defective beans below 3%, and floating beans below 5%. This processing method is divided into two paths: aerobic acetic fermentation and anaerobic lactic fermentation. The former has a cleaner and brighter acidity with citric notes; the latter has a rounder mouthfeel and higher body, but slightly lower cleanliness, displaying malic and tartaric acid characteristics. Batch consistency is achieved through pH monitoring. Wine-processed green beans are darker in color, with silver skin appearing wine-red or brownish-red. Front Street Coffee's Panama Hartmann is a representative example, and this article shares its pour-over parameters and flavor performance. [more…]

The rich, lingering fermented wine aroma of cold brew coffee often leads people to mistakenly believe that alcohol has been added to it, but this is not the case. The source of this unique flavor is closely related to the cold brew extraction method and the subsequent low-temperature aging process. Front Street Coffee will guide you through the cold brew coffee-making process: from key parameters such as the coffee-to-water ratio and drip speed, to why it cannot be drunk immediately after extraction, how low-temperature aging gives coffee its wine aroma, and the precautions to take during preparation and storage. If you also want to recreate at home a cup of clean, smooth cold brew interwoven with fruity and wine aromas, you might as well follow Front Street's approach step by step, from bean selection to aging. [more…]

This Colombian red wine process coffee from Front Street Coffee offers rich layers of flavor, with maple syrup sweetness interwoven with malt sugar aroma, lively and bright citric acidity, an impressively creamy and full-bodied mouthfeel, and a clean finish with a long-lasting sweet aftertaste. It is medium-roasted and packaged in a half-pound bag with a one-way degassing valve, suitable for pour-over, siphon, or cloth filter brewing. This article will provide a detailed introduction to this bean's processing method and origin information, along with suggested pour-over parameters for coffee enthusiasts to reference and adjust. [more…]

In recent years, anaerobic fermentation and red wine processing methods have continued to gain popularity in the specialty coffee world. From the promotion by 2015 WBC champion Sasa Sestic to the early explorations of Costa Rican coffee farmers, these processing techniques, which draw on winemaking ideas, have brought coffee rich flavors such as strawberry jam, fermented wine aromas, and tropical fruits. This article systematically reviews the scientific principles of anaerobic fermentation, its essential differences from traditional processing methods, and the specific operational workflow of carbonic maceration. It also combines two representative beans from Front Street Coffee—Colombia Flower Moon Night and Panama Hartmann—to share roasting and brewing parameters, helping coffee lovers gain a deeper understanding of the core logic of this special processing method. [more…]

Front Street Coffee's Honduras Lychee Orchid coffee beans, with their unique brandy barrel fermentation process, deliver a rich interplay of brandy, dark chocolate, berry, and honey flavors, making them a favorite among coffee enthusiasts. This article will comprehensively analyze the source of these beans' flavors from three dimensions: regional terroir, variety characteristics, and processing method, and share specific brewing parameters and techniques using three devices—the cake filter cup, Hario V60 dripper, and French press—to help readers fully bring out Lychee Orchid's vinous aroma and sweetness at home. [more…]