Single Origin vs. Blends - What’s the Difference?

Published On: August 17, 2021

Contents

  1. The Basics

  2. Why We Love Single Origin Coffee

  3. The Case For Coffee Blends

  4. Brewing Methods - Single Origin vs. Blends

  5. How To Choose Between Single Origins And Blends

 

The basic concept is simple enough. A single origin bag of coffee comes from one location, while a blend can come from multiple. However, beyond this, there’s plenty of room for confusion.

One potential trap is thinking that all coffee brands use the same definition for location when labelling their beans on packaging and in marketing. 

Another is believing that any bag of single origin coffee is intrinsically better than a blend, or thinking that because a coffee is single origin (without any additional context), it’s a good enough indicator of quality and therefore a justification for a higher price. 

In this post, we explore what we mean exactly when we talk about single origin beans, and try to offer some advice for anyone puzzling over which kind of bean to buy. 

The Basics A colombian coffee farm growing single origin coffee beans rather than blends

For some coffee enthusiasts, the best bags of coffee will come from one traceable location and should ideally be roasted more lightly to preserve the characteristics of the bean. This should happen no matter how strange, fruity, acidic or sweet the beans taste. 

Others believe that coffee brands and roasters should be completely free to experiment as much as they wish with different beans, mixing things up to create complexity or blending different flavours to produce very specific notes and flavour profiles based on what they think their customers will enjoy. 

Notably, most players in the coffee world don't sit firmly in either of these groups. And while they may have personal or a brand-led preference, will probably understand the virtues of each type of coffee.

The reason for this is that coffee growing, harvesting and roasting coffee is such a complex process that several factors will contribute to the final quality and notes in the cup, not just whether something is sourced from one place or not. 

For instance, a bag of single origin beans could taste quite unpalatable due to the poor quality of the tree or growing conditions. Equally, a coffee blend that uses a large amount of quite average beans can sometimes be made delicious when blended with other types of beans.  

For some coffee enthusiasts, the best bags of coffee will come from one traceable location and should ideally be roasted more lightly to preserve the characteristics of the bean. 

Discover How Roasting Influences Coffee Notes! 

Different Types of Single Origin

Unfortunately, the term single origin lacks an official definition which will always lead to a certain amount of customer confusion. If you’re exploring the world of specialty coffee and want to understand the role that origin plays, find out what type of single origin your beans are before buying them.

Single Country 

These beans are sourced from the same country. Various supermarket brands will have their bag of Colombian single origin beans, or their “Kenyan”, for example. 


This means that beans are probably mixed from different farms and plantations, all from within the same country. 

Single Region

Like with wine, different regions within a country are known for offering certain qualities. This is because climate and growing conditions are similar. 


A bag of single region origin beans may include coffee from multiple farms within a specific geographic area of somewhere like Colombia, Indonesia or Brazil.

Single Farm or Cooperative

Beans that are single origin and also feature the name of a farm, cooperative or a lead farmer (someone’s actual name), are popular in the specialty coffee world. 


This is because it can be assumed that not only will the beans have received a good amount of attention from one group of farmers overseeing the entire process, but also that the sourcing practices and ethical standards are more traceable. 


Specialty coffee growers care a great deal about their reputation and will usually do their best to produce quality coffees that meet their own standards of taste as well as command a good price on the global market. 

Single Micro-Lot or Nano-Lot

Micro-lots or nano-lots are enjoying growing popularity and recognition today. They’re often marketed as “premium” and “luxury” due to their limited availability. And while not all beans from micro-lots will be great, it’s sometimes likely that they will have been treated with a high level of care. 


Many roasters and customers are also attracted by the prospect of buying coffee that supports smaller groups of farmers (often individual families) rather than owners of bigger plantations that rely on automated processes and mechanical harvesting. 


Many coffee buyers are attracted by the prospect of buying coffee from smaller producers rather than owners of big coffee plantations.

Why We Love Single Origin Coffee 

Farmer picking single origin coffee beans in Colombia

When we talk about single origin beans at Hermanos, we’re referring to specific farms and locations that use very distinct growing and harvesting practices. Sometimes we’re talking about specific micro-lots too. 

If you see our product descriptions, we’ll try to explain exactly where the beans are from in Colombia with some background about the growers — many of whom we’ve had the pleasure of meeting in person and still stay in touch with about the progress of their crops each season. 

The farms we work with are also governed by unique climate conditions and are often managed in small batches. We believe this allows coffee growers to have more control over the result of the final crop and gives them greater potential to achieve exceptional notes. 

This process also lets us see exactly how we are benefitting Colombian communities. And for us, this is what really excites us about coffee. We love establishing long-term relationships that can help to support local livelihoods.

So with this in mind, if we were to then blend the beans we source with others (while the results could be interesting) we wouldn’t feel like we were necessarily doing the beans justice, or the individual communities that grow them.

However, we’ve never criticised others for their coffee creativity or boldness in mixing various beans from all corners of the bean belt. And assuming that coffee blends are still made up from beans that are traceable, there can still be a very real benefit to coffee growing communities. 

The Benefits of Single Origin Coffee

  • Knowing that your coffee beans come from a single location lets you better appreciate the unique characteristics that can only be found where that bean was grown, whether it’s fruity, berry-like notes or nuttiness. 

  • While some would see the limited availability of single origin coffees as a downside, others would see this as its appeal, supported by the fact that they feel they’re not getting generic or mass produced beans.

  • Inquisitive coffee drinkers can try to trace the impact of growing conditions on the final notes that they taste in the cup, which is significantly harder with coffee blends.

  • Knowing where your beans come from helps to promote sustainability and ethical sourcing, which has historically been a problem in the coffee industry. 

    Knowing where your beans come from helps to promote sustainability and ethical sourcing, which has historically been a problem in the coffee industry. 

    Learn Why We Think Colombian Coffee Beans are So Special

    The Case for Coffee Blends

    Example of a coffee blend mixed with milk for a latte or flat white coffee

    Historically, blending coffee was a decision made primarily for commercial reasons. By mixing higher-quality arabica beans from certain parts of the world with cheaper robusta beans from other parts, it was easier for many companies to produce large quantities of coffee that matched the public’s general taste preferences.

    Even today, blends of this type — where average or poorer quality beans are blended with others — are created for mass appeal with minimal investment. 

    Yet, there’s also a whole different world of coffee blends that sits apart from all this. Specialty coffee roasters, as well as big coffee brands, have put together many new and exciting blends over the years with taste and quality being a priority during the blending process, rather than profit. 

    Those doing this are often concerned with taking the best qualities from different origins and blending them to create something they believe tastes great and is worthy of their customer’s attention. And if the outcome is a well-balanced, smooth coffee bean that works well with or without milk, as so many blends do, then there’s nothing wrong with that.  

    There’s no doubt that many roasters enjoy this side of specialty coffee and see it as a way to create something even more unique and rewarding.

    Takeaways

    • Many customers enjoy the taste of blends and have grown accustomed to flavour profiles that offer well-roundedness and smoothness, which is often paired with milk.

    • For brands that find it difficult to source from the same farms but still want to deliver a consistent flavour experience to their customers, it’s more practical to create blends from different sources that meet the general requirements for their house batch.

    • Making coffee blends can be good for softening strong or indesirable flavours from certain beans.

    • It’s less expensive to offer a blend than certain single origin beans that are sourced from one farm, come with limited availability and are more expensive due to their usage of 100% arabica.

    • Blends are usually less “out there” than single origin beans, meaning you’re less likely to find something that really doesn’t sit well with your taste buds (and also less likely to find a bag that seriously surprises you in a good way). 

    Brewing Methods - Single Origin vs. Blends

    Two coffee glasses showcasing single origin vs blends debate made using Chemex

    As we’ve said before, if you enjoy a certain type of coffee roasted, brewed or served in a particular way, don’t let anyone tell you otherwise. However, a few specific brewing tips can always help you get the most from your beans.

    If you’ve spent a good amount of money on single origin beans recommended for their quality, unique flavors and specialty nature, consider trying it with a pour over method (V60, Chemex) that lets you tease out the beans’ subtle notes more easily.

    Also, even if black coffee has never appealed to you, we recommend having a taste before you add any milk and see if you can pick up on the notes before the flavour becomes more... subdued. 

    Some of the best single origin specialty coffee beans will taste great when paired with milk, but sometimes the subtle notes get lost when the two liquids combine. 

    Admittedly, the striking flavours and unique notes from some single origin coffees are not appealing to everyone and synergy with the flavour and consistency of milk (or a non-dairy alternative) is what’s needed to complete the drink. 

    Blends are less demanding in this sense when it comes to brew methods and roasting levels with many blends working well with pour overs as well as milk-based espresso drinks. But in the end it all just depends on your preferences as a coffee drinker.

    Brands are becoming more and more conscious of the stories behind the beans they sell.

    How to Choose Between Single Origins and Blends

    Product image of Hermanos Colombian single origin coffee beans and flat white

    It wouldn't be right to say that a single origin or a blend is outright better than the other. And it’s increasingly hard to tell whether the term “single origin” is used by brands for marketing purposes only (to convey a greater sense of value), or if it’s a true indicator of coffee having been grown in one specific location, under carefully managed growing conditions.

    Fortunately, for those interested in this side of coffee, brands are becoming more and more conscious of the demand to know the story of the bean. Even if the barista at your local roaster doesn’t know exactly why their single origin beans are better, or which part of a certain country they are grown, you should be able to find something out if you dig a little deeper by searching online or contacting the owner or sourcing team.

    The best specialty coffee brands and sourcers will have a strong relationship with their producers and should have a good amount of knowledge to offer you regarding the exact location the beans were produced and harvested. 

    If you’d like to know more about the origin of any of our beans, we’d love it if you read the descriptions we’ve put together on our product pages for each of our bags. Or if you have any more questions about the single origin vs coffee blends debate, feel free to reach out to us directly! 

     

     What Role Do Single Origin Coffee Beans Play in the Third Wave Coffee Movement?  

     

    La Estrellita
    Passion Fruit, Strawberry Gelato, Mango, Dark Chocolate
    £29.50
    Finca Las Flores
    Mango, Passionfruit, Pomegranate, Cherries, Cinnamon, Dark Chocolate
    £24.00
    El Fresno
    Dark Chocolate, Pistachio, Orange Marmalade, Salted Caramel
    £15.00
    El Calapo Coffee Pods
    Milk Chocolate, Braeburn Apple, Breakfast Tea, Walnuts, Malt
    £8.00
    San Gil
    Milk Chocolate, Pain Au Raisin, Apricot Jam, Walnuts, Orange
    £15.00
    El Faro
    Malt, Mandarin Orange, Almonds, Milk Chocolate
    £13.50
    La Estrellita
    Passion Fruit, Strawberry Gelato, Mango, Dark Chocolate
    £29.50
    La Aldea
    Black Plum, Dried Apricot, Assam Tea, Dark Chocolate
    £18.00
    best-product-cover-image
    Passion Fruit, Strawberry Gelato, Mango, Dark Chocolate
    Size:
    Grind:
    More Details
    best-product-cover-image
    Mango, Passionfruit, Pomegranate, Cherries, Cinnamon, Dark Chocolate
    Size:
    Grind:
    More Details
    best-product-cover-image
    El Fresno
    £15.00
    Dark Chocolate, Pistachio, Orange Marmalade, Salted Caramel
    Size:
    Grind:
    More Details
    best-product-cover-image
    San Gil
    £15.00
    Milk Chocolate, Pain Au Raisin, Apricot Jam, Walnuts, Orange
    Size:
    Grind:
    More Details
    best-product-cover-image
    El Faro
    £13.50
    Malt, Mandarin Orange, Almonds, Milk Chocolate
    Size:
    Grind:
    More Details
    best-product-cover-image
    Passion Fruit, Strawberry Gelato, Mango, Dark Chocolate
    Size:
    Grind:
    More Details

    Join the community

    Sign up to receive exclusive offers, updates and news on our products and services. Join our community of coffee enthusiasts and stay up to date with the latest coffee trends, roasts and brewing techniques.

    Sign-up for Newsletter

    Journal

    VIEW ALL
    Feature Image

    Hario V60 Dripper - Everything You Need to Know

    Picture this: It's 2005 and a Japanese glassware-making company called Hario has just introduced a brewer that will revolutionise the coffee scene. Read on and find out all there is to know about the Hario V60 and it's fascinating history. 

    READ MORE
    Feature Image

    Pink bourbon: a Colombian specialty coffee like no other

    Pink Bourbon - Colombian specialty coffee's latest gem? Learn all about this dazzling new varietal, its unique rise to global recognition and what the future holds for it. And don't forget to try our very own Hermanos Pink Bourbon - La Aldea.

    READ MORE
    Feature Image

    It's A Hermanos Christmas

    From Christmas Market prep to festive coffee-roasting to the birth of new seasonal characters like Santa Santiago, it’s been a rollercoaster of a month - and we’re only halfway through. Come along for a ride through the Christmas rush at Hermanos.

    READ MORE
    Feature Image

    Feliz Navidad - Introducing Hermanos Christmas Coffees

    We’ve curated two limited edition coffee beans for you this Christmas - Santa Rita Honey and Finca Las Brisas. Take a deep dive into their backstories and find out why they make the perfect Christmas bean.

    READ MORE
    Feature Image

    Stories from Colombia

    From Colombia, with love. Follow along as we take you on a trip through the journeys of four Colombian speciality coffee farmers and their families. From seemingly insurmountable hardships to deaths within the family, these farmers have seen it all, done it all, and persevered through it all. And now they want to thank you - for the unwavering support you've shown their beans through the years.

    READ MORE
    Feature Image

    Hermanos Coffee Pods

    Crafted by Hermanos, compatible with Nespresso®. Our sustainable single origin pods are finally here! Available in three of our most loved beans, get ready for your very own specialty Colombian coffee experience at the push of a button.

    READ MORE
    Feature Image

    All About Yellow Fruits

    This coffee will blow your mind - in the best way possible. With inimitable notes of pineapple mango and manuka honey, one sip is all it takes to fall in love. Get ready for Yellow Fruits to whisk you off to a tropical paradise.

    READ MORE
    Feature Image

    How is Decaf Coffee Made?

    Can't handle caffeine? That's where decaf comes in! Learn all about popular decaffeination methods used in specialty coffee and which one we prefer to use for ours.

    READ MORE
    Feature Image

    Light Roast vs. Medium Roast - Coffee Roasting Explained

    READ MORE
    Feature Image

    A Coffee Varietal Guide

    The 2 main species of coffee are arabic and robusta, where arabica is mainly used for specialty coffee. Within the arabica family there are different varietals, similar to different apple types (eg. Fuji, gala, granny smith), each varietal boasts distinct flavours and flourishes in different growing conditions. Let's explore the world of Colombian coffee varietals and its diverse tastes.

    READ MORE
    Feature Image

    The Coffee Supply Chain - How Does It Work?

    Whatever your connection is to the world of specialty coffee, we’re all at the mercy of the coffee supply chain. And knowing a little more about how it works (and the threats that it faces) can help you understand just how appreciative we should all be of great coffee when it’s available to us.

    READ MORE
    Feature Image

    Colombian Coffee vs. African Coffee: What’s The Difference?

    How does Colombian coffee compare to African coffee? We explore the main differences between the two, including roast, processing, and tasting notes.

    READ MORE
    Feature Image

    Hermanos Colombian Coffee Roasters — The Brand Refresh

    Over the past seven months, we’ve been working hard behind the scenes to hone our branding and enhance it to better convey our values and our mission.

    READ MORE
    Feature Image

    Gender Equality In The Colombian Coffee Industry — An Introduction

    The Colombian coffee industry is reliant on the work of women. Yet, women are often not recognised enough for this contribution..

    READ MORE
    Feature Image

    Choosing A Chocolatey Coffee — Insider Tips

    Coffee and chocolate are two of the most popular flavours out there. We’ll talk through the characteristics of chocolatey coffee and what's on offer at Hermanos.

    READ MORE
    Feature Image

    The Colombian Coffee Federation — What Is It And Why Is It Important?

    The Colombian coffee industry has an outstanding global reputation, and for good reason. To maintain this quality and put frameworks in place to protect the coffee growers, the Colombian Coffee Federation was created.

    READ MORE
    Feature Image

    Can Coffee Farmers Stop Climate Change Killing Their Crops?

    There are around 25 million smallholder coffee producers in the world and over 125 million people who rely on the sector. What can they do to save their crops?

    READ MORE
    Feature Image

    What Are The Key Differences Between Colombian Coffee And Brazilian Coffee?

    How similar is Colombian coffee to Brazilian coffee? Despite both countries being in South America and sitting in the coffee belt, they differ vastly from each other.

    READ MORE
    Feature Image

    Colombian Coffee Facts — Everything You Need To Know

    We’ve summarised 10 of the best Colombian coffee facts, which you can use to find out more about what makes coffee from Colombia so unique.

    READ MORE
    Feature Image

    How Is Climate Change Impacting the World of Coffee?

    While local adaptation and agricultural innovation is helping some to mitigate the effects of climate change, several studies carried out over the last decade predict we’re looking at a drop of up to 50% of total landmass suitable for coffee production by 2050.

    READ MORE
    Feature Image

    Innovation in the Coffee Industry: The Koji Method

    We’re invigorated by experimental coffee processing techniques, which is why we're so excited about Koji, our new bean.

    READ MORE
    Feature Image

    What Is Natural Coffee Processing And How Does It Impact Your Coffee?

    We dive into the natural processing method, and see how it weighs up against the washed and honey processes.

    READ MORE
    Feature Image

    Our Visit To Colombia: Meeting Coffee Farmers And Discovering New Coffee Beans

    Last month we travelled through Colombia. Our aim was to visit as many coffee growers and farms as possible in just a few weeks. Here's what we learnt...

    READ MORE
    Feature Image

    Coffee Freshness - How Fresh Is Too Fresh?

    We’ll walk you through why coffee freshness is so important, as well as some top tips on how to preserve the freshness of your coffee.

    READ MORE
    Feature Image

    Coffee Subscriptions – Coffee Clubs, Bean Boxes and In-Shop Subscriptions Explained

    The UK coffee subscription landscape is incredible. Many of the nation’s most established coffee roasters have doubled down on their online subscription models since the pandemic, while a huge number of new and digital-first brands have also entered the market.

    READ MORE
    Feature Image

    Is Whole Bean Better Than Pre-Ground Coffee?

    The vast majority of supermarkets and specialty coffee roasters offer both whole beans and pre-ground coffee. But which is the better choice?

    READ MORE
    Feature Image

    Coffee Origins – How Does Location Affect Flavour?

    Factors ranging from climate and altitude to the way local farmers process their beans have an impact on flavour. We explore how coffee origins influence coffee profiles from different countries.

    READ MORE
    Feature Image

    5 Reasons To Visit A Coffee Roastery

    A coffee roastery is one of the most exciting places to be if you’re a coffee lover or interested in how the process works. However, there are still misconceptions about what a coffee roastery is and how it relates to the other parts of the global coffee supply chain.

    READ MORE
    Feature Image

    The Beginner's Guide To Different Coffee Types

    There are so many different types of coffee out there, from Espresso-based drinks to fancy pour overs like the Chemex and V60. We’ve put together a beginner’s guide to different coffee types to make it easier for you.

    READ MORE
    Feature Image

    What Is A Coffee Roaster? Wholesale, Subscriptions & Coffee Roasting Explained

    The majority of coffee shops around the world buy their beans from a wholesale roasting company. But what is a coffee roaster? We explore!

    READ MORE
    Feature Image

    Ground Coffee vs. Instant Coffee: What Are The Main Differences?

    If you’re looking to brush up on your coffee knowledge or want to make the change from instant coffee to ground coffee, then you’re in the right place. In this post we explore the many differences between ground coffee and instant coffee, including the type of beans typically used for each, caffeine content, shelf life, taste, and the way these coffees are brewed.

    READ MORE
    Feature Image

    Espresso Explained: What's The Difference Between Espresso And Filter Coffee?

    What makes an espresso different to filter coffee? Many factors ranging from the size of the drink, the caffeine content, the taste, and even the aroma all play a part. But most importantly, these coffees differ due to the way they are made.

    READ MORE
    Feature Image

    Coffee Tasting Guide – Top 10 FAQs Answered

    There’s a strict protocol to follow if you are coffee cupping, but the general act of coffee tasting can take many forms. Here’s our coffee tasting guide for beginners.

    READ MORE
    Feature Image

    Coffee Tasting Terms Explained — How To Taste Coffee Like A Professional

    Whether you’ve got a coffee cupping session coming up, or you just want to learn how to appreciate your morning coffee more, it’s never a bad idea to brush up on your knowledge of coffee tasting terms.

    READ MORE
    Feature Image

    A Visit from the Producers of El Vergel - What We Learnt

    From challenges faced by climate change to why they choose to grow specialty coffee over commodity coffee, here’s what we learnt when we interviewed the Tolima-based producers of our popular El Vergel coffee.

    READ MORE
    Feature Image

    Coffee Traceability: What Is It and Why Does It Matter?

    The desire for traceability in the specialty coffee industry is growing, with more interest than ever in where coffee comes from, who grows it, and how it gets from farm to cup.

    READ MORE
    Feature Image

    The Cost of Coffee - What’s Behind the Rise in Coffee Prices?

    The cost of a simple cup or bag of coffee is connected to so many of the world’s most critical issues, ranging from the climate crisis to the global pandemic. We explore what’s really behind the rise in coffee prices.

    READ MORE
    Feature Image

    Natural? Washed? Honey? Coffee Processing Methods Explained

    Although you don’t need to know the difference between natural, washed or honey processed coffees to enjoy them, cafes, roasters and specialty coffee retailers are increasingly using these terms as selling points for their beans.

    READ MORE
    Feature Image

    How Do Colombia’s High Altitudes Affect Coffee Flavour?

    Coffee beans grown at higher altitudes tend to produce coffees that are more complex, rich and distinct due to the cooler temperatures that extend the growth time of the coffee plant, adding more depth in flavour.

    READ MORE
    Feature Image

    Specialty vs. Commodity Coffee: What's the Difference?

    There's never been so much interest in specialty coffee as there is now. A growing number of coffee shops and roasters define themselves by their commitment to specialty coffee, and, in a way, their opposition to 'commodity coffee'.

    READ MORE
    Feature Image

    Coffee Tasting Experiences - What to Expect During Your First Cupping Session

    Anyone can taste coffee but 'cupping' refers to the standardised process of evaluating coffees used by the coffee industry. We explore what you need to know before your first tasting (or cupping) experience.

    READ MORE
    Feature Image

    Decaf Coffee Beans - How Is Coffee Decaffeinated?

    We shed light on what decaf is and how exactly coffee is decaffeinated using methods like the sugar cane decaf process so you can make a more informed decision when choosing your next bag of Colombian decaf coffee beans

    READ MORE
    Feature Image

    The Impact of Colombian Coffee Cooperatives on the Specialty Coffee Industry

    While the coop system isn’t perfect, it’s played a crucial role in developing the Colombia's specialty coffee market and allowing smallholders to band together and promote the attractiveness of their beans. Learn more! 

    READ MORE
    Feature Image

    How to Buy Specialty Coffee Beans - A Beginner’s Guide

    Learn how to start buying better specialty coffee with our beginner’s guide. We discuss roast dates, flavours (notes), supermarkets, descriptions on coffee packets, and provide a simple checklist for when you’re in a fix.

    READ MORE
    Feature Image

    Arabica Coffee Beans - Why the World Loves Coffee Arabica

    Arabica coffee beans offer a smoother, sweeter taste than Robusta. And despite being harder to grow, are widely considered to be the superior bean in the world of specialty coffee.

    READ MORE
    Feature Image

    The Colombian Coffee Triangle - The Past and Future of Colombia’s Most Famous Coffee Producing Region

    Nearly a third of Colombia’s coffee growing happens within the “Colombian Coffee Triangle” and its major cities are strongholds for a century-old tradition of coffee farming. Learn more.

    READ MORE
    Feature Image

    Single Origin vs. Blends - What’s the Difference?

    Should you buy single origin beans or coffee blends? We explore what sets these bean types apart and what you should look for when buying your next bag of Colombian coffee beans.

    READ MORE
    Feature Image

    What Is Third Wave Coffee? A Practical Definition

    Third wave coffee means different things to different people. We explore what it means and whether it still has relevance today in the world of specialty coffee.

    READ MORE
    Feature Image

    Colombian Coffee Beans - What Makes Them So Special?

    Colombia is widely known for producing some of the best specialty arabica coffee beans. But what makes single origin Colombian coffee beans so special? We explore how everything from growing conditions and climate to harvesting practices and the Colombian Coffee Growers Federation (FNC) have all played a part.

    READ MORE
    Feature Image

    Understanding Different Coffee Roasts - A Beginner’s Guide

    We all know coffee roasting matters to the final flavour but the reasons why are unclear for many. Does dark mean bitter? Does light mean fruity? Is medium roast a safe “middle ground”? Learn how different roasts influence coffee flavour.

    READ MORE