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.

Osman, who is passionate about olives and olive oil, grew up in Izmir, one of the major olive producing regions of Turkey.

He has extensive experience in blending and sensory evaluation in the tobacco business since 1996 and is currently a master blender and panel leader in a leading global tobacco company. In 2019, he decided to expand his sensory knowledge in olive oil with ONAOO’s technical course.

After two years of training, he obtained the qualification of Professional Taster of ONAOO in 2023. He provides consultancy to farmers and olive oil producers in Turkey and product experience in Switzerland.

In 2018, Wilma finished her training at the ONAOO. She was in charge of buying Mediterranean products, including olive oil. Being Dutch, she didn’t know much about olive oil and found a school in Italy.

She loved it so much that she left her job and started working in the olive oil business. She also trained as a sommelier in New York and a master miller in Jaen. She asked the Ministry to appoint her as panel leader at the European Union. She wrote the book “Olive Oil,” which has been translated into English, French, and German.

Her book encourages olive oil lovers to meet in Imperia. O.N.A.O. is a big family! He also founded the Olive Oil Institute, which has a panel of fifteen members, most of whom were trained by O.N.A.O.O. The Institute has an electronic nose, so that testing can be done objectively. Some universities are also trying a similar method. This should improve quality overall. But the panel will always exist because human judgment is needed.

Catherine Fogel has been engaged in the field of gastronomy since 2002. In the same year, she met ONAOO and became a taster.

She subsequently completed a course for panel leaders organized by ONAOO in 2005, attaining the qualification of panel leader. In 2018, having completed an advanced educational course, she obtained the ONAOO Professional Taster qualification. In 2008, Catherine founded “Olivoteque” to present quality olive oils to consumers (www.Olivoteque.com).

She also provides consulting services to several companies in Europe, assisting with the administration and sourcing of high-quality products. Since 2004, Catherine has been a judge in several gastronomic competitions, including the World Cheese Awards, which she has been involved with since 2008. She is also a member of the Guild of International Cheesemongers.

In 2011, she was appointed Ambassador for the Scandinavian countries. In 2021, she was appointed Chevalier de L’Ordre du Merite Agricole by the French Ministry of Agriculture and Food. She frequently collaborates with numerous renowned European chefs.