Danielle was born in England, but she has lived in Italy for over 35 years.

After obtaining a degree in history, she began working in tourism. Her passion for olives started with the olive grove around her hotel on Lake Como. Later, due to a challenge with her husband, she decided to open an olive mill high in the mountains at 1816 meters in Livigno. From there, she began her adventure in the world of extra virgin olive oil with her company “O’Liv”.

Prior to establishing the company, she attended ONAOO’s technical course in 2020 to expand his knowledge.

During the course, she developed a passion for oil tasting and qualified to join the national list of virgin and extra virgin olive oil technicians and experts in 2022. Following the two-year advanced training course, she became a professional olive oil taster in 2024. She frequently attends ONAOO’s tasting sessions as she believes that training is essential for personal and professional growth as a taster.

Berk is a researcher at the World Bank with a PhD in economics.

He has been an ONAOO Professional Taster since 2022. His partner, Sarah Baird, and he have young olive trees in the South Island of New Zealand (Aotearoa) and they hope to produce extra virgin olive oil from their grove.

They live with two dogs and two sheep, love animals, and enjoy plant-based cooking.

He was born in Genoa in 1966. In 1992, he founded the company “Lorenzo Costa fu Eugenio 1860”, of which he still is the administrator. The company deals with door-to-door sales of extra-virgin olive oil and other food products. In 1996, he was granted the certificate of Professional ONAOO taster.

In 2019, Diana and her husband initiated the establishment of a modest olive grove in the Marche region of Italy.

As a result of the substantial increase in production, they made the decision to sell their business in the Netherlands. Currently, the company’s exclusive focus is on the production of extra virgin olive oil in Italy under the Di Lorenzetto brand, which is renowned for its superior quality.

To further refine the quality of their oil and gain a deeper understanding of the varieties, flavors, health properties, and defects of olive oil, Diana decided to embark on a training course. She began with a tasting course in Madrid, followed by a technical course and an advanced one at O.N.A.O.O., concluding her studies in november 2024 with the qualification of Professional Taster. In 2024, she also obtained her olive oil sommelier certification at the International Culinary Institute in New York.

Since 2019, Diana has been a member of the Olive Oil Institute panel from the Netherlands. She also regularly conducts workshops and masterclasses for schools, chefs, amateur cooks, and olive oil enthusiasts in the Netherlands and Italy.