World Class Judges

Matthew Peetz

Colorado, United States

How did you get into the beer industry? Why does beer matter to you?

I started homebrewing in grad school while studying cellular repair using yeast as a model organism. My grad advisor was in charge of the Rocky Mountain Microbrewing Symposium and I was able to meet industry experts while volunteering at the event. I continued to work with yeast as a research professional at University of Colorado Denver before moving to the Brewing Science Institute. I used my expertise with propagating yeast to work in the biofuel industry before founding Inland Island with a co-worker. I have spent the last five years building my own business, Propagate Lab, which provides yeast for the brewing, distilling, and cider industries.

Beer is meant for enjoyment. It can transport you to anywhere in the world as you taste thousands of years of human experience and history. With hundreds of yeast, hop, grain, and other ingredient varieties, almost any flavor, texture, and color of beer can be produced for your enjoyment. You can pick apart the flavor, color, mouthfeel, and aroma. Or you can just slam down crushable lagers. That is what is so great about beer!

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

Beer is a wonderful combination of culture, history, art and science. Brewers work tirelessly to create something that the public can enjoy. Those that are masters of their craft should be recognized at the highest level, which is winning a World Beer Cup award. The brewers are serious about what they do and should be judged by knowledgeable and professional judges. I have 10 years of industry experience, lead sensory training programs at a local University, and have traveled extensively in Europe. I believe that I am well trained and passionate enough to make sure that every beer sample is being judged as it should be.

Tomoko Sonoda

Chiba, Japan

How did you get into the beer industry? Why does beer matter to you?

One of the plans for new business development was a brewpub, and I thought it would be fun to brew beer, so I applied for the position and was hired in 1996. The brewery opened in 2000, and I have been working as the brewmaster ever since. I believe that both drinking and brewing beer are magical experiences that enrich my life.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

One goal is to deepen my knowledge of beer. By judging alongside people involved in the beer industry from around the world, I can learn to perceive things I might not otherwise notice, discover global trends, and, most importantly, train my sensitivity by putting myself in challenging situations. I am grateful for the opportunity to participate in this world-class judging competition, where accuracy in sensory evaluation and a serious sense of responsibility and judgment are required.

Marty Nachel

Illinois, United States

How did you get into the beer industry? Why does beer matter to you?

After tasting beer on my first brewery tour, I realized exactly how good beer can be when it’s fresh and offered in many different styles. I knew immediately this was my new focus in life. I began brewing my own beer at home and submitting it to competitions. Following this, I became a beer judge with the Beer Judge Certification Program (the first in my home state) and began freelance writing on the topics of beer and brewing which eventually led to the publication of several books. Now I’m judging beer as a professional judge with international credentials.

Beer is important to me not just as a preferred beverage of choice, but also as a libation to be generously shared with others, and I consider it a link to our own human history.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

I judge at the World Beer Cup first because I consider it a great privilege to evaluate some of the best beers in the world. Secondly, I appreciate the opportunity to meet and judge alongside my peers from other countries around the globe. I’m proud to be a member of the global beer judging community.

What else would you like the world to know?

It’s my goal to judge beer on every continent that has a commercial brewing industry.

Sylvia Kopp

Berlin, Germany

How did you get into the beer industry? Why does beer matter to you?

As an author, speaker, and teacher on beer culture, beer styles, beer tasting, and the sensory evaluation of hops, I have been a recognized advocate of genuine innovation for 20 years. I am convinced that true creativity, which arises from a connection with one’s core values, will always drive development—unlike fear-driven reactions to economic demands that lead to boredom and stagnation.

I have been a trainer at the BarthHaas Hops Academy since 2019. I founded and directed the Berlin Beer Academy and worked for several years as an ambassador for American craft beer for the Brewers Association across Europe. Throughout my career, I have published numerous books and articles, and I recently co-founded Women4Beverages, a network for women in the industry, at BrauBeviale in Nuremberg. My latest project, a series of video interviews and text portraits, highlights female role models in the beverage industry.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

Judging has been the key to my entry into the world of beer culture. I’m proud to be a long-term judge at both the World Beer Cup and European Beer Star, which I joined when they were the only two major competitions in Europe and America. It’s an honor to be invited back each time. Nowhere else have I learned as much about beer flavors, styles, and global beer cultures as I have at the judging tables of the World Beer Cup. I truly appreciate the discussions and exchanges with international brewers and fellow beer professionals. I always return home with fresh inspiration and new stories to publish in our magazines.

Steve Luke

Washington, United States

How did you get into the beer industry? Why does beer matter to you?

In the summer of 2005, I found myself packing boxes and sweeping floors at a local brewery — and I was hooked!

The beauty of beer and brewing is that it can be as complicated or as simple you make it out to be, and finding that happy medium is up to each and every brewer. There are endless wormholes to seek knowledge and solutions, and continuously evolving techniques, equipment and ingredients. But at the same time, the brewing process is still timeless and logical. Good beer is good beer, no matter how you get there!

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

Judging at the World Beer Cup allows you to meet people with different backgrounds in the beer industry from all over the world. It’s engaging, exciting, and often challenging. And it gives you an unrivaled snapshot of the current state of beer — from a quality standpoint, to trends and experimentation, to observing and developing beer style parameters.

Mark Zunkel

Nuremberg, Germany

How did you get into the beer industry? Why does beer matter to you?

I studied my undergraduate degree at the University of Colorado, Boulder. There, I was able to experience the craft brewing scene, but my true inspiration for brewing started during a study abroad year in Regensburg, Germany. I fell in love with lager beer and German brewing traditions. After returning to finish my studies, I started homebrewing. That accelerated my interest in beer and brewing, after which I applied and studied at the Technical University of Munich in Weihenstephan. After graduating, I started working with the world’s largest hop supplier, BarthHaas, as a technical manager. My passion lies in the tasting and technology of beer. Hops as a raw ingredient are the core of my passion. The composition, aroma, cultivation regions, and the individuals involved in the hop industry are central to my passion for beer.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

I judge for many reasons: Meeting with beer industry colleagues, debating beer and beer styles, and experiencing the quality of beer in the market. The most interesting categories for me are all hoppy styles, but also the experimental categories where a brewer’s imagination can run wild.

First and foremost though, the World Beer Cup is for brewers and their customers. Therein lies the value for everyone in the industry and the most important reason why all the judges, breweries, and beer consumers should praise one of most important beer events in the world!

Fernanda Ueno

São Paulo, Brazil

How did you get into the beer industry? Why does beer matter to you?

I began my brewing journey in 2009 at Cervejaria Colorado in Brazil, starting as an intern and becoming head brewer. After earning a degree in food engineering, I completed the Master Brewers Program at UC Davis in 2015. I then led innovation projects for AB InBev’s craft breweries across South America and Europe.

In 2021, I moved to Europe to manage brewing and quality for ABI’s craft brands—including Camden Town, Bosteels, Birra del Borgo, and La Virgen—as well as co-packers and Beyond Beer products, until 2024.

Throughout my career, sensory analysis and beer judging have been part of my daily work. I’m passionate about experimenting with new ingredients, flavors, and techniques, exploring not just beer but also beverages like sake and coffee.

I’m also co-founder and brewmaster of Japas Cervejaria, a female-owned gypsy brewery blending Japanese and Brazilian influences. We brew and distribute our beers in Brazil, the U.S., and Taiwan, using beer as a creative way to honor our heritage.

Beer continues to teach me and connect me with amazing people every day—and I’m proud to give back to the industry that inspires me so deeply.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

Judging at the World Beer Cup is both an honor and a way for me to give back to the brewing community that has shaped so much of my life. It’s a chance to support brewers by providing thoughtful, constructive feedback, and to celebrate the creativity, diversity, and technical skill that go into every beer. With a background in brewing, sensory analysis, and innovation across different cultures and styles, I see judging as a unique opportunity to keep learning while also helping to uphold the highest standards in our industry. It’s incredibly rewarding to be part of such a prestigious event that brings together passionate professionals from around the world to share knowledge, elevate beer quality, and inspire one another.

Damon Scott

Colorado, United States

How did you get into the beer industry? Why does beer matter to you?

I discovered craft beer at a local restaurant owned by a homebrewer. While wrapping up a degree in chemistry (with no idea what I would do with said degree), I dove into homebrewing. I suddenly realized there was something tangible I could make, using my creative spirit and my analytical brain. Brewing provides the opportunity to learn about farming, plant physiology, fluid mechanics, thermodynamics, and so much more. I realized early on that one is never bored while working in the brewing industry!

Beer matters to me because it allows me to make something that other people can experience viscerally.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

Judging at the World Beer Cup is truly an honor. I always find myself judging with incredibly experienced and knowledgeable people, who are simultaneously humble and approachable. The judging process constantly challenges my own assumptions about how I perceive the complex matrix that is beer. Judging also provides context through which I can view the beer I make, and evaluate it more objectively.

It is easy to get caught up in your own small world as a brewer. Nothing tears off the blinders like judging at the World Beer Cup. Tasting incredible beers inspires me to make better beer and question my assumptions. That perspective is invaluable.

Tetsuya Kojima

Tokyo, Japan

How did you get into the beer industry? Why does beer matter to you?

Beer has completely changed my life. About 25 years ago, I was just a craft beer fan. One day, I attended a beer festival in Tokyo sponsored by the Craft Beer Association and saw a flyer for a Beer Judge Seminar. I became interested in the beer judge qualification program in Japan, and a few years later, I took the seminar and got certified as a beer judge.

About 10 years ago, I received a phone call from Ryouji Oda, former president of the Craft Beer Association, asking me to serve as a lecturer at the beer tasting program and beer judge qualification program sponsored by the association. Now, I’m a lecturer for the association, teaching beer tasting and judging methods at seminars. I’m also a competition director at Japanese beer competitions, such as the International Beer Cup and the Japan Great Beer Awards.

In fact, I don’t work in the beer industry. My actual job is as a computer science professor at a college in Tokyo. However, beer occupies a significant part of my life. I am, and always will be, very happy to spend my life in the world of craft beer.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

My first judging experience at the World Beer Cup was in Nashville in 2018. As a certified beer judge, I wanted to contribute to events like this to help raise the quality of craft beer. This was the primary reason I joined the World Beer Cup. Another reason was my desire to stay updated on global trends in craft beer, which remains a crucial part of my experience at the WBC. I hope to judge new beer styles at every World Beer Cup. It’s an excellent learning opportunity for me, and I can share my experiences from the competition with my students and fellow beer judges in Japan.

Samuel D’Imperio

How did you get into the beer industry? Why does beer matter to you?

I entered the world of craft beer in 2013 by opening Malta’s first craft brewery. The beauty of making craft beer is that you can experiment with many styles, and we do, using as many local ingredients as possible. In 2016, we brewed the world’s first Gose using caper flowers as dry hopping and sea salt from local cliffs. We also invite the world’s leading breweries to Malta, combining ingredients from their countries with our local ones.

The philosophy of my brewery is to use the best machinery available on the market to ensure consistency while still producing unpasteurized beers. I believe it is impossible to achieve this goal without technology.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

Being a judge at the World Beer Cup is a great thrill and a point of pride to be on the panel with the best judges from around the world. Ever since I founded the brewery, the World Beer Cup has always been a milestone. It is the most prestigious beer competition in the world, and representing Malta for the first time in this competition is a great privilege and honor for me.

Geoff Deman

Kansas, United States

How did you get into the beer industry? Why does beer matter to you?

My interest in brewing began in college when I took a semester off and stayed with friends in the Bay Area, one of whom had taken up homebrewing. I helped him with a few batches and then dove into the deep end when I returned to school at the University of Kansas, where a homebrew supply shop had just opened in Lawrence. Many batches later, with a bachelor’s degree in art history in hand, I moved to Seattle hoping to land a brewing job. That first job paid me $6 an hour. Needless to say, I wasn’t into beer for the money—I was into it for the people, the community, the creativity, and the camaraderie.

I was fortunate to have amazing mentors, peers, and colleagues during my time brewing at Pike Brewing Company in Seattle, and later at Free State Brewing when I returned to Lawrence. Beer matters to me—or I should say, good beer matters to me. To borrow the words of Brother Epp of Capuchin Monastery in Munjor, Kansas, written in 1906 during Prohibition: “Because, without beer, things do not seem to go as well.”

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

Every time I judge the World Beer Cup, I learn something new and gain perspective from a diverse group of judges who may not speak the same language I do on a daily basis, but certainly speak the language of beer. It’s great to judge with German judges in German beer categories or Belgians in Belgian beer categories and get their perspective on the nuances of a classic style originating from their home country. It’s equally interesting to hear the perspective of an Argentinian or Japanese judge on these styles and learn more about the growing beer culture in their countries.

I’ve made new friends that I look forward to visiting in their home countries someday and seeing when they visit us during the World Beer Cup. Good beer brings good people together.

Kathia Zanatta

How did you get into the beer industry? Why does beer matter to you?

After finishing my food engineering degree in Brazil, I followed my love for beer. I landed an internship at Paulaner Brewery in Germany in 2005, where I delved into the world of brewing and embraced the country’s diverse beer culture. Upon my return, I transitioned into a role at a brewery in Brazil, where I honed my skills over a five-year period in areas such as quality control, research and development, and laboratory analysis. In 2008, I embarked on a journey to Germany for the Beer Sommelier course, marking my entry into Brazil’s burgeoning craft beer scene.

Equipped with this expertise, I began organizing beer events. By 2010, I co-founded Instituto da Cerveja, an educational institution dedicated to the art of beer, and since then I have been fully committed to studying (including a brewmaster course in 2011), impactful teaching, hosting beer and food events, and consulting.

Why do you judge at the World Beer Cup? What does judging at the World Beer Cup mean to you?

I have been participating as a judge in beer competitions since 2009, consistently enjoying the opportunity to expand my knowledge of beer, sensory analysis, and the market. It’s not only a chance to connect with new colleagues, but also an opportunity to support breweries by engaging in discussions about their beers and providing valuable feedback.