A Cup of Coffee Propels a Qatari Student to Entrepreneurship

The official website of Georgetown University in Qatar (GU-Q) recently highlighted a success story in the world of coffee, featuring Khalid Al-Kawari, a Qatari student from the Class of 2024. Khalid exemplifies the entrepreneurial spirit of the university through his innovative journey. Faced with the closure of a popular campus café, he seized the opportunity to unite students, faculty, and staff with the launch of his own coffee venture, Casual Coffee.

Khalid opened the café in 2023 during his third year of study. “I knew I’d have the support of the university community, which made the decision much easier,” he said. The name Casual Coffee was not a random choice. Khalid explained, “The name was originally my father’s idea for a café he had planned to open. When I decided to start my own venture, he suggested I use it. It felt like I was continuing a family legacy.”

Overcoming Challenges

Launching a business on campus was not without its challenges. With the support of Dean Safwan Masri, Khalid successfully secured permission to open Casual Coffee at GU-Q.

Another hurdle was balancing quality with affordability. Khalid, who is studying international politics, said: “As a small business, managing high operational costs while maintaining high-quality coffee was a significant challenge.” He added, “Fortunately, the university has a variety of coffee suppliers, which allows us to offer options that cater to different segments of the community.”

Building a Team and a Thriving Business

From sourcing suppliers to building a loyal customer base, Khalid attributes the success of Casual Coffee to his dedicated team.

“The experience of our baristas, Karyl Pasco and Haldane Alfonso, has been crucial in maintaining the high standards of the café,” he said. Additionally, Mohammed Ashraf and Jomaa Mohammed manage logistics and procurement. “Their expertise has been essential to ensuring the quality that defines Casual Coffee.”

Feedback from friends and students has also played a pivotal role. “Their input helped us refine our services and create a welcoming environment for everyone,” Khalid noted. To foster a sense of community, Khalid even introduced special drinks named after faculty members and students who requested them.

Balancing Studies and Business

Balancing academics with running a business has been a challenging yet rewarding experience for Khalid. “I follow a strict schedule that allocates time for my studies and business tasks. I also use digital tools to stay organized,” he explained. “Trusting my team with daily operations allows me to focus on my studies when necessary.” Khalid revealed that he is also working on launching new ventures in the real estate and food and beverage sectors, applying the same principles of time management.

“The biggest lesson I’ve learned is resilience,” Khalid shared. “From rejections to operational challenges, every obstacle has been a learning experience. It’s all about adaptability and finding creative solutions.”

Advice for Aspiring Entrepreneurs

For students considering entrepreneurship, Khalid offers the following advice:

  • Focus on effective time management and remain flexible, understanding that every business has its unique nature.
  • Create a structured schedule that balances academic commitments with business operations, starting with a simple, scalable concept.
  • Leverage university resources by connecting with professors, peers, and mentors for valuable guidance and support.
  • Listen to customer feedback to improve your services and ensure they meet market needs.
  • Stay resilient in the face of challenges, as every obstacle provides valuable lessons.
  • Don’t forget to prioritize self-care and allocate time for relaxation to maintain balance.

Future Plans

With plans to expand Casual Coffee beyond its current locations at GU-Q and Sidra Hospital, Khalid envisions the brand becoming a prominent name in Qatar. But his ambitions don’t stop there. Khalid shared, “I’m working on two other businesses in different sectors to build a diverse portfolio. It’s important for me to keep Casual Coffee at Georgetown as a source of inspiration for any student looking to start their own business. I want to show them that with determination and the right support, they can turn their entrepreneurial dreams into reality.”

Automatic Coffee Machine Market Set to Reach $7.5 Billion by 2032

The global automatic coffee machine market is expected to witness a compound annual growth rate (CAGR) of 6.1% from 2024 to 2032, driven by rising disposable incomes and increased consumer spending.

According to a report by Global Market Insights Inc., the market size for automatic coffee machines was valued at $4.4 billion in 2023, with projections to reach $7.5 billion by 2032. This growth is fueled by an expanding café culture and a growing preference for specialty coffee, boosting demand for high-performance and user-friendly machines.

Convenience and Customization Drive Market Demand

Modern consumers value the speed and convenience offered by automatic coffee machines, which come equipped with customizable features such as adjustable coffee strength, temperature, and brewing styles. These innovations elevate the overall coffee experience, making these machines a popular choice for households and businesses alike.

However, the market faces challenges such as the high upfront cost of premium models and the ongoing need for maintenance, including cleaning and descaling, which can limit adoption, particularly in developing regions with lower disposable incomes.

Drip Filter Machines Lead the Market

The market is segmented by machine types, including drip filter coffee machines, espresso machines, and others. Drip filter machines dominated the market in 2023 with a valuation of $2.5 billion and are expected to grow at a CAGR of 5.7% through 2032. These machines are favored for their eco-friendly design, reusable components, and continuous technological advancements, appealing to a broad consumer base.

Offline Sales Remain Strong

Offline distribution channels accounted for 51.4% of the market share in 2023 and are projected to grow at a 4.5% CAGR through 2032. Physical stores, such as electronics retailers and department stores, play a significant role in influencing consumer purchasing decisions by allowing customers to experience products firsthand before committing to a purchase.

North America Leads Regional Growth

North America held a substantial share of the market, valued at $1.2 billion in 2023, with an anticipated growth rate of 6.3% CAGR through 2032. The region’s strong coffee culture, high consumer purchasing power, and demand for convenience in daily routines drive this growth. Additionally, the trend of brewing specialty coffee at home continues to push demand for advanced machines capable of delivering café-quality results.

Key Players in the Market

Leading companies in the automatic coffee machine market include Bosch, Breville, De’Longhi, Electrolux, Hamilton Beach, Jura, Keurig Dr. Pepper, Melitta, Miele, Morphy Richards, Nestlé, Newell Brands, Panasonic, Philips, and Smeg, among others.

A Promising Future for Automatic Coffee Machines

With increasing consumer interest in specialty coffee and continued technological advancements, the automatic coffee machine market is poised for steady growth. As the industry evolves, manufacturers are likely to focus on sustainability and efficiency, further enhancing the appeal of these machines to a global audience.

Cypher Urban Roastery Celebrates 7 Years of Coffee Excellence

 

Cypher Urban Roastery is marking a significant milestone this year, celebrating seven years of passion, growth, and dedication to the art of coffee roasting. As a small, independent business, Cypher Urban Roastery has become a trusted name in the specialty coffee scene, earning the loyalty of coffee enthusiasts locally and globally.

Founded with a mission to craft exceptional coffee and nurture meaningful connections across the coffee supply chain, Cypher Urban Roastery has remained steadfast in its commitment to authenticity, innovation, and quality. Over the past seven years, the roastery has built a strong reputation for its dedication to supporting coffee farmers, educating partners, and delivering top-tier service.

In a heartfelt message, Managing Partner Mohamad Merhi expressed gratitude to customers who have been pivotal in the roastery’s journey. “Every purchase you make helps us do more than just run a business; it allows us to create opportunities for all stakeholders across the coffee industry ecosystem,” said Merhi. “Your support fuels our passion and allows us to focus on what matters most: serving you.”

Unlike large conglomerates, Cypher Urban Roastery takes pride in its hands-on approach, working directly with farmers, brewers, and other partners in the coffee community. The business places a strong emphasis on education and empowerment, equipping stakeholders with the knowledge and tools needed to thrive and contribute meaningfully to the value chain.

As part of its anniversary celebration, Cypher Urban Roastery encourages its community to continue supporting small businesses that are making a difference in their communities. “Every order matters,” the message reads, highlighting the impact of conscious consumer choices during the holiday season.

Looking ahead, Cypher Urban Roastery is committed to expanding its reach and influence within the coffee industry while staying true to its core values. As the roastery celebrates this milestone, it remains focused on fostering sustainability, innovation, and excellence in every cup.

To learn more about Cypher Urban Roastery’s journey and offerings, visit their website or drop by their roastery to experience their passion for coffee firsthand. Here’s to many more years of coffee excellence and community partnership!

Registration Opens for the UAE National Coffee and Latte Art Championship 2025

 

The organizing committee has announced the opening of registration for the UAE National Coffee and Latte Art Championship 2025, which will take place as part of the World of Coffee Dubai 2025 exhibition at the Dubai World Trade Centre from February 10 to 12, 2025. This championship is one of the most prominent events highlighting the creativity and excellence of coffee professionals in the UAE.

Registration Requirements and Conditions

The organizing committee invites all those interested in participating to submit their applications through the link provided in the bio, adhering to the following conditions:

Participation Conditions:

  • Applicants must have been residing in the UAE for no less than two years.
  • Applicants must hold a valid UAE residency visa.
  • Obtain an individual membership with the Specialty Coffee Association (SCA), which can be completed through the dedicated membership link.
  • Pay the participation fee of AED 1,500.

Required Documents:

For UAE Nationals:

  • A copy of the passport.
  • Membership with the Specialty Coffee Association.

For Residents:

  • A copy of the passport.
  • Copies of current and previous residency visas to prove a minimum two-year residency in the UAE.
  • Membership with the Specialty Coffee Association.

All submitted documents will be reviewed, and participants will be selected based on the fulfillment of the conditions and the validity of the documents. Official confirmation will be sent to approved participants via email.

Championship Equipment and Regulations

The championship will adhere to the standards of the World Coffee Championships to ensure performance quality and competition fairness. The following equipment will be used:

  • Official Espresso Machine: Victoria Arduino “Eagle One” with two groups and a 58mm portafilter basket.
  • Official Grinder: Victoria Arduino “Mythos,” model MY 75.

An Invitation to the UAE Coffee Community

The organizing committee extends an open invitation to members of the UAE coffee community to participate in various ways to support the event, including:

  • Volunteering: An opportunity to work behind the scenes and contribute to the success of the championship.
  • Sponsorship: An opportunity to highlight brands to the local and international coffee community.

For More Details:

For additional information, please contact us via email at [email protected].

Don’t miss the opportunity to take part in the UAE National Coffee and Latte Art Championship 2025, an event that celebrates coffee culture and showcases the finest talents in the UAE.

Arabica Coffee Prices Hit Record High: What’s Happening in the Coffee Market?

Arabica, the world’s most popular coffee variety, has reached an unprecedented price level, driven by severe weather conditions in Brazil, the largest producer of Arabica. Consumers are expected to feel the impact of this price surge by early 2025.

A Historic Price Surge

On December 10, March futures for Arabica reached a record-breaking $3.34 per pound (approximately 0.45 kg). This represents the highest price ever recorded in trading history and an 80% increase compared to last year. Robusta, another popular coffee variety, also hit its own record high in September.

So far, coffee roasters have been holding off on raising retail prices to maintain market share. However, according to Tuan Loc Commodities’ CEO, the situation is likely to change in the first quarter of 2025, as companies will no longer be able to avoid passing on these costs to consumers.

Several major companies have already announced plans to adjust their prices. A representative from Lavazza indicated that price adjustments are necessary to maintain product quality and consumer trust. Reports suggest that another major company plans to increase its coffee prices by up to 30%, citing the high costs of Brazilian raw materials.

Coffee Prices in Russia

In Russia, reports indicate that price increases in coffee shops are unlikely before March or summer 2025. However, prices have already risen by 15–30% in cafes over the past year, outpacing official inflation rates.

In supermarkets, coffee prices have risen by no more than 10%, despite a 20% increase in procurement costs. Retailers have reportedly worked to minimize the impact on consumers.

What’s Happening in the Coffee Market?

The historic price hike for Arabica is primarily attributed to extreme weather in Brazil. In August and September 2024, Brazil experienced its worst drought in 70 years, followed by heavy rains in October. These weather conditions disrupted the harvest season and preparation of seedlings for the next season.

Vietnam, the largest producer of Robusta, also faced unstable weather, including droughts and heavy rains, further impacting global supply.

At the same time, global demand for coffee continues to rise. Even in countries like China, traditionally known for tea consumption, coffee consumption has doubled over the past decade.

Speculation and Market Uncertainty

In addition to climate-related challenges, economic speculation plays a significant role in the price surge. According to industry experts, the coffee market remains highly speculative as it awaits the next harvest season.

A Silver Lining for Small Farmers

While high prices may concern consumers, they offer a glimmer of hope for small-scale farmers. According to industry reports, 80% of global coffee production comes from small farms, and rising prices provide an opportunity for increased income.

One coffee industry expert noted: “Higher prices finally allow farmers to earn a fair wage for their hard work.”

Climate Change and the Future of Coffee

Arabica coffee plants are highly sensitive to climate changes. They require temperatures between 15 and 24 degrees Celsius, as well as adequate shade and rainfall. As climate change accelerates, the areas suitable for growing Arabica are shrinking.

A 2022 study predicts that by 2050, the regions suitable for Arabica cultivation in Latin America, Africa, and Asia will significantly decline. In contrast, Robusta is more resilient to hot climates, making it a more sustainable option for the future.

Conclusion

The coffee market is facing significant challenges, with rising prices reflecting both climate-related disruptions and growing demand. While consumers may bear the brunt of these changes, small farmers stand to benefit from fairer earnings. The key question remains: how will the coffee industry adapt to climate change and evolving market demands?

Collaboration to Advance Regenerative Agriculture in Mexico’s Coffee Sector

 

An innovative partnership has been established to promote regenerative agricultural practices within Mexico’s coffee sector. This initiative, developed by a prominent global agricultural trading company and an international organization focused on sustainable value chains, aims to foster low-carbon coffee production while improving the livelihoods of coffee-growing communities.

Over the next three years, the partnership will engage approximately 3,500 coffee farmers across 6,700 hectares in the states of Chiapas, Veracruz, and Puebla. Farmers will be equipped with tools and training to enhance soil health and coffee plant quality through methods such as cover cropping, crop diversification, the establishment of new coffee nurseries, and the adoption of resource optimization technologies. The initiative also seeks to improve traceability across participating farms, promoting greater transparency within the coffee supply chain.

A senior representative from the sustainability-focused organization emphasized the importance of scaling regenerative models in Mexico, highlighting the value of collaboration with a leading coffee trading company. This partnership combines expertise to bring sustainable solutions to coffee farmers, contributing to global efforts for climate resilience and sustainability.

This effort aligns with the agricultural company’s broader initiative to address climate challenges in coffee-growing regions by reducing environmental impact and enhancing community resilience. Similarly, the organization’s program is focused on promoting climate-smart agricultural practices that economically benefit smallholder farmers while advancing global climate goals.

“Regenerative agriculture offers a transformative approach to meeting the dual challenges of sustainability and productivity in the coffee sector,” remarked the company’s Regional Coffee Sustainability Manager. “Collaboration between key stakeholders is vital for fostering practices that benefit both the environment and farming communities.”

About the Agricultural Trading Company
This leading global company specializes in trading and processing agricultural commodities and operates in over 100 countries, employing approximately 18,000 people worldwide. Its mission is to deliver essential goods responsibly and reliably, supporting food and clothing needs for millions.

About the Sustainable Development Organization
The international organization, with over five decades of experience, works to build sustainable value chains by collaborating with stakeholders across supply chains. It focuses on innovative solutions to enhance farmers’ livelihoods, protect the environment, and create resilient communities.

For additional details on the project, please contact the respective organizations through their official channels.

Major Coffee Roasters in Brazil Prepare to Raise Prices

 

Major coffee roasters in Brazil are preparing to increase prices following a period of unfavorable weather conditions that negatively impacted crop forecasts and led to rising costs.

According to reports from Reuters, the Dutch coffee roasting company JDE Peet’s plans to raise coffee prices in Brazil by up to 30% in 2025.

Two traders confirmed the news, referencing documents sent to the company’s clients. JDE Peet’s stated that “climate issues” are the primary reason behind the price increase, which will affect a range of products, including roasted and ground coffee, instant coffee, and capsules.

At the same time, the Brazilian roaster 3 Corações, a joint venture between São Miguel and Strauss, announced plans to raise its prices by 11% starting January 1, according to documents sent to clients and reviewed by Reuters.

The German coffee company Melitta has already raised its prices by 25% as of December 3.

All three companies cited climate-related factors as the reason for the price hikes. Additionally, 3 Corações mentioned rising demand and economic volatility as contributing factors, stating that the continuous rise in green coffee prices has forced the company to gradually transfer these costs to consumers.

In a note to analysts earlier this week, Barclays pointed out that rising prices for Arabica and Robusta could impact coffee volumes in Europe. They predicted organic sales growth of 2%, a 3.5% increase in pricing, and a 1.5% decline in volumes during the second half of the 2024 fiscal year.

For JDE Peet’s market in Latin America and Russia, Barclays forecasted even higher price increases, noting that Brazil and Russia account for approximately 85% of sales in the region.

Meanwhile, the company’s Asia-Pacific market is also under pressure due to price increases in Australia and New Zealand, which have impacted sales volumes.

This week, coffee prices reached new highs. Arabica beans, the most widely consumed variety, reached $3.34 per pound on December 10 on the Intercontinental Exchange before retreating to $3.21. Robusta beans peaked at $5,565 per metric ton at the end of November but have since fallen to $5,192.

Analyst Jon Cox commented that rising green coffee costs are forcing manufacturers to increase prices. Depending on the type of coffee, these increases are likely to reach double digits. However, such hikes could lead to lower sales volumes as consumers opt for cheaper alternatives or private-label brands.

“Qima Coffee” and “The Gentlemen Baristas” collaborate to reshape the Yemeni coffee industry

A groundbreaking collaboration between Qima Coffee and The Gentlemen Baristas is transforming the specialty coffee landscape, bringing Yemen’s prized coffee heritage to global prominence. This partnership builds on Qima Coffee’s innovative approach to direct trade and sustainable practices, alongside The Gentlemen Baristas’ celebrated legacy of London’s coffee culture.

Founded in 2016 by Faris Sheibani, Qima Coffee has worked tirelessly to reframe Yemen’s narrative from a war-torn country to a producer of some of the world’s most sought-after coffees. Known for their earthy, fruity flavors and balanced acidity, Yemeni coffees fetch premium prices, with the top lot at the Best of Yemen 2024 auction reaching $1,159 per kilogram. Despite this success, Yemen’s coffee industry continues to face significant challenges, including smuggling, outdated infrastructure, and economic instability exacerbated by years of conflict.

Qima Coffee has made substantial strides to support Yemeni farmers, working with non-profits to develop infrastructure such as the country’s first major coffee nursery and a 43,000 sq ft processing center. These initiatives have benefited over 1,500 smallholder farmers, who, on average, earn 400% above standard market rates for their crops.

The partnership with The Gentlemen Baristas represents another milestone for Qima Coffee’s mission. The London-based specialty coffee group, which faced financial challenges earlier in 2024, has been revitalized under Qima’s parent company, Origins 1450. The acquisition includes a state-of-the-art 12,000 sq ft roastery in Stratford, equipped with training facilities, a UK Barista Championship practice area, and an SCA-specification school. The Gentlemen Baristas’ iconic café near Borough Market also continues to operate, preserving its role as a hub for coffee enthusiasts.

This collaboration strengthens the fully integrated “seed-to-cup” supply chain model, reducing intermediaries and enhancing transparency while ensuring higher payments for farmers. According to World Coffee Portal, this model underscores the potential of equitable trade to reshape the specialty coffee industry.

Yemen’s coffee heritage dates back to the 15th century when it became the first country to cultivate coffee for consumption. Although it now accounts for less than 0.5% of global coffee production, Yemen’s unique soil and traditional farming methods produce some of the world’s most exceptional coffee. Qima Coffee has also expanded its operations to Colombia and Ecuador, showcasing rare and exclusive coffees globally through partnerships with over 800 specialty roasters in 40 countries.

The Gentlemen Baristas, known for their nod to London’s historic coffee houses, maintain their distinct identity while embracing the future through this collaboration. Their wholesale business has been rebranded as The Jampot Coffee Company, paying homage to London’s first coffeehouse, The Jamaica Winehouse, which opened in 1652.

This partnership exemplifies how a shared vision can create meaningful change in the coffee industry. By blending Yemen’s rich history with cutting-edge trade practices, Qima Coffee and The Gentlemen Baristas are not only preserving traditions but also setting new standards for quality, transparency, and sustainability.

Q Grader Certification: Questions and Answers on the New Coffee Evaluation Updates

 

The Specialty Coffee Association has announced a new coffee evaluation system based on the Coffee Value Assessment model. This announcement has raised numerous questions about its impact on the Q Grader certification and the role of the Coffee Quality Institute (CQI) in supporting coffee communities.

In this article, we provide clear answers to the most frequently asked questions, as outlined by the Coffee Quality Institute.

With the Specialty Coffee Association recently announcing its transition to a new coffee evaluation system based on the Coffee Value Assessment model, the Coffee Quality Institute has received many inquiries about how this new system will affect its operations and community. Here are the answers to the most commonly asked questions:

1. What does this mean for CQI’s educational programs?
CQI is a globally recognized leader in training and certifying coffee professionals, but cupping training is only one part of its mission. The institute offers a variety of programs, including Quality Evaluation and Post-Harvest Processing, with plans to launch new courses next year. CQI remains committed to improving coffee quality and enhancing the livelihoods of coffee producers.

2. Does the new system affect the Q Grader certification?
The new system does not impact the Q Grader certification. The certification remains valid and continues to demonstrate the skills of a professional coffee cupper. CQI will carry on offering training, testing, and certifications as it has done for the past 20 years.

3. What cupping form will be used in courses?
CQI will continue to use the cupping form introduced in 2004 for its Quality Evaluation programs, including the Q Grader courses, in the foreseeable future.

4. Are there plans to change the cupping form in the future?
There are currently no plans to change the cupping form. CQI views cupping forms as tools that serve the broader goal of supporting the success of coffee cuppers. The institute aims to prepare participants to effectively use various forms utilized across the coffee sector.

5. What changes can be expected in the Q Grader program?
CQI continually works on enhancing its educational offerings and has introduced incremental updates to the Q Grader program over the years. Currently, the institute is conducting a comprehensive study to identify the skills coffee cuppers need in light of industry developments. Any future updates will be announced with sufficient time for adaptation.

6. What is CQI’s view on the new coffee evaluation system?
CQI welcomes any system that contributes to improving coffee evaluation and supports the interests of coffee producers worldwide.

The Coffee Quality Institute reaffirms its commitment to supporting coffee communities, enhancing coffee quality, and equipping professionals with the skills they need to thrive in this dynamic industry.

Coffee Quality Institute Welcomes T.J. Ryan as Director of Mission Engagement

Coffee Quality Institute (CQI) is thrilled to announce the appointment of T.J. Ryan as Director of Mission Engagement. Ryan, a seasoned professional in the coffee industry, brings decades of expertise in building partnerships and facilitating on-ground initiatives aimed at improving coffee quality and fostering sustainability.

“This is a new role at CQI, and I can’t think of anyone better to fill it,” said Michael Sheridan, CEO of CQI. “T.J. is a proven leader with decades of experience in coffee communities around the world. He knows the difference that quality can make in the lives of the people who produce coffee because he has seen it first-hand, working in the field with CQI to help connect quality-focused coffee producers to markets in ways that have lasting impact.”

Ryan’s extensive background includes his tenure at ACDI/VOCA, where he served as Chief of Party for the PhilCAFE project in the Philippines. The initiative successfully enhanced coffee quality and boosted competitiveness in the region. Additionally, Ryan held the role of Managing Director of Specialty Crops, overseeing the development and implementation of agribusiness strategies across Latin America, Africa, and Asia. He also holds an MBA from the Carey Business School at Johns Hopkins University.

Expressing his enthusiasm, Ryan shared, “Working with Coffee Quality Institute at this time is really exciting. I’m looking forward to using my experience in new ways and to utilize this global platform to serve coffee communities with greater impact.”

As Director of Mission Engagement, Ryan will spearhead CQI’s efforts in cross-sector collaboration, resource mobilization, and impact assessment. His responsibilities include cultivating relationships with diverse stakeholders such as private-sector investors, public-sector leaders, academic institutions, and allied organizations.

With Ryan at the helm of this pivotal new role, CQI is poised to expand its reach and deepen its impact, continuing its mission to advance coffee quality and support coffee-producing communities worldwide.

A New Study Reveals the Relationship Between Coffee Roasting Levels and Caffeine Content

 

A recent comprehensive study has unveiled the impact of coffee roasting levels on the extracted caffeine content and its concentration in the final brew, challenging some common beliefs in the coffee industry.
Titled “Caffeine Content in Filter Coffee Brews as a Function of Degree of Roast and Extraction Yield”, the study was conducted by researchers at Berry College and Drexel University. They analyzed 30 different combinations of green coffee types, roasting levels, and extraction times.

The researchers utilized advanced techniques such as refractometry, high-performance liquid chromatography (HPLC), and scanning electron microscopy to explore the complex dynamics governing caffeine extraction.

According to experts, the relationship between roasting levels and caffeine content has long been a subject of debate. However, this study provides significant insights by isolating the factors that have often confused previous results.

The researchers arrived at several important findings, including:

  1. Caffeine content peaked at roasting levels with mass losses ranging between 14–16%, which corresponds to light to medium roasts. Darker roasts, however, generally exhibited lower caffeine levels.
  2. When comparing brews with the same extraction yield, darker roasts demonstrated higher caffeine concentrations, challenging the common belief that light roasts always contain more caffeine.
  3. As roasting progresses, coffee beans become more porous, enhancing extraction efficiency. However, this effect diminishes due to caffeine losses caused by volatilization at high roasting temperatures.

The researchers adopted a rigorous methodology to ensure accuracy and repeatability. Ethiopian coffee varieties, including natural (dry-processed) and washed (wet-processed) types, were selected for their diverse characteristics. Five different roasting levels were prepared using an advanced electric drum roaster (Aillio Bullet v2). Each roasting level was characterized using precise parameters such as color, density, and mass loss percentage.

The coffee was brewed using the AeroPress device under standardized conditions, including a water-to-coffee ratio of 15:1. Different brewing times (1, 2, and 10 minutes) were tested to observe variations in extraction yield. External factors such as grind size were controlled using sieving, and filtered water with consistent chemical properties was used to minimize external influences.

The study demonstrated that extraction yield—the percentage of soluble compounds extracted from ground coffee—plays a critical role in determining caffeine levels. Results showed a decline in extraction yields with increasing roast darkness, attributed to the breakdown of soluble compounds during roasting.

Interestingly, darker roasted coffee exhibited higher caffeine concentrations at the same extraction yield compared to lighter roasts. This is due to the lower presence of other soluble compounds in darker roasts, allowing caffeine to represent a larger proportion of the extracted material.

The study also highlighted the role of porosity in extraction dynamics. Using scanning electron microscopy, changes in porosity across different roasting levels were measured. The researchers found that coffee beans become more porous as roasting progresses, enhancing the efficiency of extracting soluble compounds during brewing.

However, the results indicated that extremely dark roasting leads to reduced caffeine retention due to the collapse of the internal structure of the beans.

The research did not only focus on caffeine but also investigated chlorogenic acids, which are important antioxidants. The study revealed that these acids decreased significantly with darker roasting levels, making lighter roasts a better option for those seeking their health benefits.

This study provides valuable insights for coffee enthusiasts on how their brewing choices impact caffeine levels. While light and medium roasts typically deliver higher caffeine levels under standard conditions, similar levels can be achieved from dark roasts if extraction parameters are optimized. Furthermore, the findings suggest that lighter roasts may retain more beneficial compounds, such as chlorogenic acids.

The study also addresses the inconsistencies in previous research on roasting levels and caffeine content. Earlier studies produced contradictory results due to variations in brewing methods, grind sizes, and water properties. By standardizing these variables, this research offers a more reliable framework for understanding how roasting affects caffeine.

These findings hold significant value for coffee professionals, from roasters to baristas. Roasters can adjust their profiles to balance caffeine retention with flavor development, while baristas can optimize brewing methods to extract desired compounds.

Additionally, the study aligns with the growing demand for transparency in specialty coffee, enhancing consumer understanding of the scientific aspects of their favorite beverage.

Despite its considerable contributions, the study opens the door for further research. Can different brewing methods, such as espresso or cold brew, yield similar results? How do other factors, like the altitude of coffee cultivation and processing methods, influence caffeine dynamics?

This groundbreaking research underscores the remarkable complexity of coffee, where every variable—from bean origin to roasting level and brewing method—shapes the final outcome. By uncovering the intricate dynamics of caffeine extraction, the study advances coffee science and empowers both professionals and consumers to make informed decisions.

As specialty coffee continues to grow in popularity, this study reminds us that there is always more to discover about the world’s favorite beverage.

An Anonymous Donor Provides Free Coffee for Protesters in Seoul

 

An anonymous donor contributed 5 million won (approximately $3,800) in advance to purchase coffee at a café near the National Assembly in Seoul, in support of participants in the popular protests calling for the removal of President Yoon Suk Yeol following his declaration of martial law last week.

A post on the platform “X” stated: “A man in his fifties prepaid for about 1,200 cups of coffee worth 5 million won for the protesters. The participating café is ‘Paris Baguette’ near the KBS building in Yeouido, and the code to claim the coffee is ‘Kim Min-joo’.”

The post clarified that anyone could receive a free drink by providing the name used for payment at the café.

A receipt for the 5 million won prepayment for beverages at “Paris Baguette” near the National Assembly highlighted the donor’s support for protesters.

The café is located near the National Assembly Station on Seoul Metro Line 9, where protests are frequently held. This initiative, which expresses solidarity with citizens enduring the cold weather to participate in demonstrations, has become an increasingly popular trend in the area.

The Yeouido branch of “Paris Baguette” near the KBS building confirmed that an individual had contacted them to arrange the prepayment and transferred 5 million won to the café’s account.

A branch official stated: “We are currently discussing when to begin providing the prepaid beverages to citizens.”

While the donation amount was substantial, the name used for the prepayment — “Kim Min-joo” — sparked significant interest online. The Korean meaning of the name, “democracy,” was seen as symbolic in light of the ongoing protests. Many speculated whether the name was real or deliberately chosen to reference the current political situation.

One user commented on the significance of the name, saying: “When I was a student in Jeolla Province, there were three students in my class named ‘Min-joo.’ It feels as though the generation that lived through the 1980 Gwangju Uprising wants to pass on the spirit of democracy to the next generation.”