Leandro Gentini and the Art of Knowing Beef

Across the global food world, a quiet revolution has been unfolding at the butcher's block and the steakhouse pass. Chefs, critics, and hospitality professionals are beginning to speak about beef the way the wine world has long spoken about vintages and terroir - with vocabulary, rigor, and reverence. "Meat is more than food," as those working at the intersection of culture and craft have long understood. It is heritage. It is ritual. It is expression.

No one embodies that convergence more completely than Leandro Gentini, known to the global meat community as "Lean" - the world's first International Meat Sommelier. Raised in Argentina, where gathering around beef is woven into the fabric of daily life, Lean did not simply grow up appreciating great meat. He grew up understanding, almost instinctively, the role it plays in connecting people and carrying stories across generations.

The stakes of that understanding are higher than they might first appear. The global beef industry is vast, fragmented, and deeply regional. Cultures that produce extraordinary beef - Japan, Argentina, Ireland - have historically operated in parallel rather than in dialogue. The craft knowledge held by breeders, farmers, butchers, and chefs rarely crosses those borders in any structured way. What the industry has lacked is not talent, but connective tissue: a shared language, shared standards, and someone willing to build the bridge.

That is precisely the gap Lean has spent his career closing. His trajectory - from Argentina's largest branded food company, through Buenos Aires University's pioneering Meat Sommelier program, across five years living and studying in Japan, and now into Southern California where he is building the International Meat Sommelier Association - reads less like a career plan than a calling pursued with uncommon discipline.

The work itself is less glamorous than the title suggests. Before Lean ever stood before a Wagyu carcass in Japan or addressed a room of butchery students in Ireland, he spent more than a decade inside Argentina's largest food companies, moving across marketing, finance, supply chain, and commercial roles in categories that ranged from meat and wine to pasta and poultry. That breadth was not accidental. It gave him a working knowledge of the food industry as a business - the economics, the logistics, the institutional inertia - that most culinary specialists never acquire.

When Buenos Aires University launched its Institute of Meat Sciences and Trades program in 2019, Lean enrolled as one of its first students. The program was intensive: more than 200 hours of training covering sensory analysis, anatomy theory, and culinary sessions led by top chefs. He was among the first graduates. That credential, layered onto a decade of industry experience, produced something the field had not seen before - a practitioner who could speak fluently to producers, chefs, hospitality executives, and academics in the same conversation.

His move to Japan followed naturally from a fascination with Wagyu that had been building for years. "I wanted to see how beef can truly connect people around the world," he has said of that period. He spent five years there, visiting steakhouses, studying cuts, brands, feeding regimes, and aging techniques, attending the Wagyu Olympics, and building relationships throughout the global beef industry that would later become the scaffolding for something much larger.

The International Meat Sommelier Association - IMeatSA - did not emerge from a business plan. It emerged from a recognition that the craft knowledge Lean had spent years accumulating had nowhere to live institutionally. Meat experts around the world were working in isolation, their expertise unrecognized by any shared professional framework. Lean founded IMeatSA in 2021 to change that: a platform to unite those experts, raise awareness of the craft behind every piece of meat, and advance a commitment to responsible consumption and sustainable sourcing.

The association's vision is straightforward but ambitious: to honor each piece of meat while promoting awareness, education, and sustainable sourcing across the entire chain - from breeders and farmers to butchers and chefs. It is, in essence, an attempt to do for meat what established sommelier associations have done for wine: create a professional identity, a common language, and a global community of practice.

The most concrete illustration of what that bridge-building looks like in practice came in 2023, when Lean orchestrated a formal collaboration agreement between the Japan National Meat Academy and the Argentine Meat Sommelier Association - the first such agreement between the two countries' meat schools. It was a landmark moment: two of the world's most distinct beef cultures, historically separated by geography and language, formally committing to cross-continental knowledge exchange.

The recognitions that have accumulated along the way speak to the breadth of what Lean has built. In 2022, the 101 Best Steakhouses Ranking organization named him its "Steak Ambassador" for Japan - a role that expanded in 2024 to cover the U.S. West Coast. In 2023, he served as a judge for the World Steak Challenge in the Wagyu category. In 2025, he delivered the keynote address at the launch of Ireland's first Bachelor of Arts degree in Sustainable Butchery and Gastronomy at Munster Technological University in Cork - and was honored as an ambassador at the World Meat Championship, described as the most prestigious event in the world of meat.

What those appointments share is a quality that goes beyond credential: they reflect an industry's recognition that Lean occupies a position no one else does. He is not simply a judge, or a speaker, or a founder. He is the person who has been present - and consequential - at the intersection of the world's most important beef cultures, consistently and over time.

That consistency has a cost. It requires the willingness to relocate, to study, to build relationships across languages and cultures, and to pursue a professional identity that did not exist before he created it. For Lean, the trade-off has been clear from the beginning: the depth of understanding he sought could only come from immersion, not observation.

Today, Lean is based in Southern California, where he works with restaurants, hospitality groups, and food organizations while continuing to develop IMeatSA. He maintains a following of more than 30,000 on Instagram, where he shares reviews, chef encounters, and perspectives on the industry with a community of fellow meat enthusiasts. Food critics and international publications regularly seek him out for his views on the future of beef.

He is also writing a book - one that draws on years of research and firsthand experience, with a focus on connecting global meat communities and educating readers about Japanese Wagyu. It is a project that reflects the same instinct that has defined his entire career: the belief that knowledge shared across borders is worth more than knowledge kept within them.

In 2026, he joined the advisory board of The Beef Advocate, an organization dedicated to promoting higher standards in beef production and consumption - a role that further cements his position as an international advocate for excellence across the entire supply chain. His story, as he himself has framed it, reflects the value of combining expertise with curiosity: rather than following a traditional path, he cultivated a passion and kept seeking new opportunities to learn from diverse cultures, industries, and perspectives.

What Lean has built is not merely a career. It is a new professional category - and the institution designed to sustain it long after any single individual's tenure. The world's first International Meat Sommelier is, above all, building something that will outlast the title.