Beyond the Board with Kosterina [Trend Spotlight: Very Vinegar]

In this episode of Beyond the Board, host Sonya Gafsi Oblisk sits down with Katina Mountanos, founder of Kosterina. Listen as they discuss how personal frustrations in the grocery aisle turned into a brand rooted in Mediterranean tradition. After spending years in investment banking and CPG, Katina set out on a mission inspired by her family's ties to Greece: to bring truly high-quality, high-polyphenol extra virgin olive oil to American consumers. What began as a passion project built around incredible taste soon grew into something bigger, a wellness platform grounded in the science of the Mediterranean diet and the benefits of early-harvest olive oil.

Throughout the conversation, Katina shares what actually makes olive oil exceptional, from hand harvesting and same-day milling to carefully controlled transport, and why most people in the U.S. have never really experienced olive oil at its best. A certified olive oil sommelier, she also breaks down the role of polyphenols, the antioxidants that give high-quality EVOO its health benefits, and explains why the Mediterranean diet continues to rank as the #1 diet for overall health year after year. Along the way, she clears up common misconceptions, including the difference between filtered and unfiltered olive oil, and how Kosterina approaches clean, simple ingredients across its products.

Just when you think the conversation has covered everything olive oil, she shares what's next for the brand: vinegar. Included in the 2026 Whole Foods Market Trend Report as part of the "Very Vinegar" movement, Katina talks about how customers are reimagining unique ways to consume vinegars. This episode offers a look at how Kosterina is building a cross-category wellness brand centered on flavor, transparency, and the timeless principles of Mediterranean living.

At a glance:

06:45: Career History

08:10: Early passion for olive oil

09:30: Olive Oil 101

13:57: The impact of the Mediterranean lifestyle

16:06: Extra Virgin Olive Oil Shot

18:18: Trends Spotlight: Very Vinegar

19:29: How customers are reimagining vinegar

21:18: Visit kosterina.com for recipes, products and more

21:41: What's next for Kosterina

22:48: Lightning Round

The information provided on this episode is for general knowledge and informational purposes only, and does not constitute medical advice. It is essential to consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment. The content on this episode is not a substitute for professional medical advice, diagnosis, or treatment.