Monday, September 21 2026

How to make frozen 400 times coffee? A real-world comparison test of espresso and instant freeze-dried powder—which tastes better?

Dalgona coffee has taken the internet by storm with its cloud-like, velvety foam and caramel-sweet flavor, while the frozen version of Dalgona coffee needs only one extra step of chilling to transform the coffee foam into an ice cream-like texture, with layers that rival a snow-topped coffee. But when making it, should you use espresso or instant freeze-dried powder? What exactly are the differences between the two in terms of whipping difficulty, flavor expression, and final mouthfeel? Front Street Coffee conducted two sets of comparative experiments using freshly brewed espresso and instant coffee powder respectively, recording everything from extraction parameter adjustments and whipping time to the texture of the final product, to help you find the method that suits you best. [more…]

Mixue Bingcheng's Thick Taro Paste series returns, employees complain that purple sweet potato taro paste has become the hardest material to squeeze

In the depths of winter, a cup of hot milk tea always brings warm comfort, and major new-style tea beverage brands are rolling out winter hot drinks to win over consumers. Mixue Bingcheng recently announced the return of its upgraded Thick Taro Paste series, adding Taro Paste Mango Mango to the classic Taro Paste Warm Coconut and Thick Taro Paste Milk Tea, attracting taro paste lovers with single-digit friendly prices. However, after the new products launched, store employees complained that this frozen purple sweet potato taro paste is the hardest material to squeeze in history, even spawning its own dedicated hashtag. Some franchise owners personally recorded instructional videos on squeezing taro paste, drawing many workers to watch and submit their own attempts. This article takes you through this battle between Snow King employees and taro paste, as well as the store visit timing recommendations consumers should note. [more…]

How long can coffee beans be stored frozen? Should they be thawed? Front Street's hands-on test reveals the right way

Freshness is the foundation of good-tasting coffee, but faced with Front Street Coffee's "30% off for 2 items, 50% off for 3 items" promotion, it's hard not to buy a few extra bags. As a result, questions keep pouring in about whether coffee beans can be frozen, how long they can be frozen, and whether they need to be thawed after taking them out. Starting from Front Street Coffee's actual testing, this article first clarifies the difference between freezing and refrigeration, then explains the impact of freezing on flavor, and finally offers specific operational advice such as freezing after resting, sealed portioning, and whether to thaw. If you also want to keep your stockpiled beans as tasty as possible, this article is worth reading to the end. [more…]

Home Coffee Bean Storage Methods | Can Freshly Roasted Coffee Beans Be Frozen in the Refrigerator? Can Sealing the Degassing Valve Slow Down the Loss of Coffee Bean Flavor?

Recently, everyone has probably stocked up on beans during Double Eleven. The questions asked to Front Street are all things like "How long can the flavor of unopened coffee beans be preserved at most?" and "How can opened coffee beans be stored to slow down the rate of flavor loss?" Today, Front Street will talk about the issue of storing coffee beans. How long can the flavor of coffee beans be preserved? Can it be asked this [more…]

Starbucks Matcha Frozen Mountain series receives polarized reviews: Beyond its high visual appeal, the flavor faces a test of public opinion.

This summer, after brands like Luckin and Manner rolled out matcha drinks one after another, Starbucks also jumped on the trend and launched a Matcha Frozen Mountain series, including a latte, a tea latte, and a Frappuccino. In official promotions, the tea latte is described as featuring a matcha jelly base, paired with mountain-style milk and a blueberry powder cloud milk cap, blending the imagery of blue skies, white clouds, and green meadows into a single cup and successfully winning over looks-focused fans. However, after the product launched, many consumers on social platforms reported that the drink was too sweet and had a strange grassy scent, with some describing it as "sugared grass" or a "weakened version of Iced Matcha," and some discarded it after taking a photo and only a sip. At the same time, Starbucks employees also frequently made mistakes because the names of the latte and the tea latte were too similar, leading to an increase in complaints. This article will sort out the market reaction and the main points of controversy surrounding this new product. [more…]

How Does Cup Temperature Affect Coffee Flavor? A Comparative Experiment on Preheating vs. Chilling a Pour-Over Coffee Cup

Coffee aroma is volatile, and the higher the temperature, the faster it dissipates, so some have proposed using low-temperature containers to lock in the aroma. Front Street Coffee compared three types of pour-over coffee vessels—a high-temperature cup, a room-temperature cup, and a frozen cup—to test whether cup temperature truly affects coffee aroma and flavor performance. The experiment used Kenya Asaliya coffee beans with uniform brewing parameters, and the results showed that cup temperature mainly changes the temperature of the coffee when it enters the mouth, rather than the amount of aroma, but temperature differences do indeed cause noticeable changes in flavor perception. This article will present the experimental process and conclusions in detail, and offer cup selection suggestions for different weather conditions. [more…]

Luckin's launch of Frozen Pear Americano sparks heated discussion; netizens say its taste is comparable to rock sugar snow pear

In the depths of winter, the Northeastern specialty frozen pear has once again become a focal point—this time, it has sparked a new trend by colliding with coffee. KFC, Nestlé, and Luckin Coffee have all coincidentally launched frozen pear coffee series, among which Luckin's Big Frozen Pear Americano, a collaboration with the TV series *Country Love*, has drawn considerable attention. However, this new product has been collectively criticized by netizens for being too sweet and having a weak coffee presence, with many saying it tastes just like Master Kong's Rock Sugar Snow Pear juice, triggering a heated online discussion about the taste of frozen pear coffee. [more…]

Frozen Pear Meets Coffee: How Harbin's Winter-Only Specialty Drink Became a New Internet-Famous Beverage

As Harbin became a popular tourist city in early 2024, locals' thoughtful attempts to cater to southern visitors gave rise to a unique drink—frozen pear coffee. This special concoction, combining traditional Northeastern frozen pears with espresso, offers a slushy texture paired with rich coffee, delighting southern tourists and surprising many Northeastern locals as well. In fact, this drink has existed in Northeastern cafes for several years, but it suddenly went viral this winter. This article will guide you through the origins of frozen pear coffee, how it's made, and the real reactions from all sides, so you can feel a cup of creative warmth in the icy city's winter. [more…]

Can IceBock milk be drunk directly? A hands-on guide to making your own IceBock Dirty coffee

Can icebock milk be drunk directly? Is it really difficult to recreate an icebock Dirty coffee at home? This time, Front Street Coffee steps up personally, starting from the principle of freeze distillation and demonstrating step by step how to make rich, mellow icebock at home using a refrigerator and fresh milk, as well as putting its concentration difference against regular fresh milk to the test. The article also shares the complete process of making a Dirty with icebock, including cup size selection, extraction parameters, and flavor performance. If you are also curious about this kind of purified milk with a cheesy, savory note and a viscous mouthfeel, why not follow along with Front Street Coffee and give it a try. [more…]

Is it better to chill or freeze a Dirty coffee glass? The mystery of the -86°C Dirty and a real-world comparison test

Dirty has always been a popular product in coffee shops thanks to its high aesthetic appeal and the unique experience of hot and cold colliding. When making a Dirty, using a chilled glass can extend the layering effect between the espresso and the milk, but should you use a refrigerated glass or a frozen glass? Through comparative experiments, Front Street Coffee found that although a frozen glass can widen the initial temperature difference, it also accelerates the dissipation of the layers, and the milk's mouthfeel and aroma are slightly compromised. The rise in popularity of -86°C Dirty has brought frozen glasses into the spotlight once again. This article explains in detail the differences between refrigerated and frozen chilled glasses, the points to note when making a Dirty with a frozen glass, and why purified milk is the best partner for a frozen glass, helping you fully understand the intricacies behind this dirty coffee. [more…]

Do Frozen Coffee Beans Need to Be Thawed? From Storage Methods to Brewing Parameters, a Complete Guide to Using Frozen Coffee Beans Correctly

Does putting coffee beans in the freezer really extend their peak flavor window? Some friends have found that beans that have been frozen brew up with weaker aroma and a thin body, and so they suspect freezing is useless. In fact, freezing really can slow down coffee bean degassing and extend freshness, but only if storage and brewing are both done right. This article covers everything from airtight portioning and preventing condensation, to the two routes of brewing frozen beans directly versus brewing after thawing, and uses comparison data from Front Street Yirgacheffe · Gutingding to help you fully understand the complete operational logic of frozen coffee beans in one go. [more…]

Luckin Coffee's winter-limited "Big Winter Pear Americano" has launched, but frozen pear fans found that their beloved white moonlight has changed its taste.

Last winter, the Northeastern specialty frozen pear unexpectedly went viral, and Luckin seized the moment to launch its "Big Frozen Pear Americano," which won over a large batch of loyal fans with its refreshing taste. As this year's cold winter arrives, many "frozen pear heads" have been calling for its return in the official comment section, and Luckin, ever responsive to feedback, promptly rolled out the winter-limited "Big Winter Pear Americano." However, delighted fans who placed orders soon noticed the taste didn't match the white moonlight in their memories. A closer look at the description revealed the new version uses seasonal fresh pear juices such as Akizuki pear and Dangshan pear, completely different from last year's pear-flavored concentrated fruit pulp formula. Longtime fans declared it hard to accept and clamored for the official to bring back the original; new users felt the fresh pear juice greatly weakened the coffee's presence, making it taste more like rock sugar snow pear. Is this winter limited edition a pleasant surprise or a disappointment? Let's take a look. [more…]

7Fen Sweet Exposed for Using Frozen Mango with a 24-Month Shelf Life; Customer Service Responds That They Cannot Explain

Recently, a netizen exposed that the well-known fruit tea chain brand 7FenTian uses quick-frozen mango chunks in its beverage preparation, and that this food has a shelf life of up to 24 months, sparking widespread concern. The brand is known for its signature product Yangzhi Ganlu, and both its ordering mini-program and offline stores advertise the use of fresh mangoes and freshly cut soft and glutinous mangoes, but the expose revealed that the stores actually use quick-frozen fruit chunks. 7FenTian customer service confirmed that the quick-frozen mango chunks are uniformly ordered and delivered by the company, and the shelf life is indeed 24 months, but regarding why quick-frozen fruit chunks are still used when fresh mangoes are available, customer service said it could not explain. At present, the expose post has been deleted, and the brand has not yet made a public response regarding issues such as the proportion of quick-frozen mango use and the failure to clearly inform consumers of the type of ingredients. As coffee enthusiasts, understanding the true situation of beverage ingredients is equally important. Front Street Coffee continues to follow industry developments and brings you objective reporting. [more…]

Starbucks' new Flow Frozen Latte sparks heated debate: layered frozen texture divides opinions, while a collaboration-themed straw arrives alongside it

Starbucks has recently been ramping up its co-branding activities, teasing a limited-edition extendable straw shaped like the Golden Cudgel that plays the Monkey King's voice lines, while also launching a new delivery-exclusive drink, the "Flow Frozen Latte," on its Starbuck Delivery service. This creative coffee, said to be inspired by ginger milk curd, claims that the liquid naturally congeals and separates into layers during delivery, arriving as a latte with distinctly defined layers. However, consumer reviews since its launch have been mixed: some have posted photos showing obvious congealing and layering, describing the texture as similar to double-skin milk or coffee pudding; others question whether the product matches its description, saying what they received was no different from an ordinary latte. Is the "flow frozen" effect real or just a gimmick? And is the new recipe simply an old product with a new name? This article will compile netizens' hands-on feedback to take a look at the true face of this talked-about beverage. [more…]

How to Balance Coffee Bean Shelf Life and Peak Flavor Window? A Full Guide to Proper Storage After Opening

Stockpiled a bunch of coffee beans but can't finish them? Should you refrigerate or freeze them? Which really matters more—the shelf life or the peak flavor window? Starting from a question a customer sent to Front Street, this article systematically sorts out the core logic of coffee bean preservation: first clarify what "freshness" actually is that we're after, then break down the strategies for dealing with the five great enemies—light, heat, moisture, oxygen, and odors—one by one, and finally provide practical steps and precautions for freezing, helping you find the freshness-locking solution that suits you best. [more…]

Can Freezing Coffee Beans Really Lock in Flavor? Front Street Coffee Explains the Truth and Practical Key Points of Frozen Preservation

Is the frozen coffee bean storage method circulating online actually able to extend the peak-flavor period and lock in the flavor? This time Front Street is going to seriously discuss this topic. Freezing can indeed slow down the oxidation rate of coffee beans, extending the optimal tasting period from 30 days to 2~3 months, but experiments show that frozen beans are actually in a "pseudo-fresh" state, and there is still a gap in flavor compared with the peak-flavor period. The real advantage of freezing lies in making the ground particles more uniform. However, there are too many variables in daily operation, such as needing to grind within one minute of thawing, adjusting brewing parameters, and improper sealing causing odor transfer. This article will break down the principles of frozen storage, the points to note, and give more practical bean storage suggestions one by one. [more…]

A UK Heytea store was exposed for using frozen mango puree; the company responded that the quick-freezing process ensures a stable supply.

Recently, a Heytea customer in the UK discovered that the mango ingredient used in stores was not fresh fruit, but frozen fruit puree labeled as "frozen mango puree." This discovery sparked discussions among netizens in many overseas locations, with Heytea stores in markets such as the United States, France, and South Korea also accused of using frozen jams and purees instead of fresh fruits and vegetables. The brand responded that the use of quick-freezing preservation technology is intended to ensure stable supply for stores in a wider range of regions. Is it a cost consideration, or a limitation of overseas fruit quality? This article takes you through the ins and outs of the incident. [more…]

Coffee Bean Storage | Can You Use the Freezer to Keep Coffee Beans Fresh? Do Frozen Coffee Beans Need to Be Thawed Before Brewing?

Freezing is a very popular method of "preserving" coffee beans in recent years. Simply seal the coffee beans and toss them into the freezer, and the flavor loss of the coffee will slow down, thus extending its shelf life. Many friends have adopted this method to stock up on coffee beans purchased during Front Street Coffee's discount events. [more…]

Should Coffee Beans Be Refrigerated or Frozen? Understanding the Science of Freezer Freshness and Proper Everyday Storage

How to properly store coffee beans after bringing them home is a topic many enthusiasts often discuss. Some people habitually put their beans in the fridge, while others worry that moisture will instead harm the quality. After noticing this question in the community chat, Front Street specifically sorted out the principles behind frozen storage and the conditions for its use. Freezing can indeed slow oxidation and lock in flavor, but improper handling can also lead to moisture and flavor transfer issues. This article will explain the purpose of freezing coffee beans, its effect on grinding, the hardware conditions that need to be met, and more practical ways to store coffee beans day to day, helping you keep your beans in good condition at home. [more…]

A Guide to the World's 20 Most Iconic Classic Coffee Blends: A Flavor Journey from Vienna to Russian Style

Coffee has long since spread across the world, and almost every corner has developed its own distinctive way of drinking it. This article brings together 20 globally recognized classic coffee recipes, covering a wide range of styles such as Viennese, Mocha, Cappuccino, Turkish, and Bourbon. Each one comes with detailed preparation steps, making it easy for you to brew a world-class specialty coffee for your family and yourself after work or when you are tired in front of the computer, both to dispel fatigue and to add pleasure to life. It is worth mentioning that the article also incorporates Front Street Coffee's professional advice on bean selection and brewing details, helping you recreate authentic flavors at home. Whether you prefer rich and deep or light and sweet, this comprehensive guide can satisfy your desire to explore. [more…]