Online Course

A real experience to take your first steps in the world of the oil supply cha...

Official Technical Course

17 / 
21 Sep
Have a good nose and be a foodie are not sufficient features to become a prof...
Lu Sheng Tsai Alex
( Taiwan )
Lu Sheng Tsai Alex


Alex, a native food enthusiast and skilled chef from Kaohsiung, Taiwan, runs a restaurant called Alessandro Mediterranean, which offers a wide array of delectable Mediterranean dishes.

Driven by his passion for European cuisine, Alex has also established a European gourmet food store.

This store specializes in various European food products and tableware, with a particular emphasis on Italian cuisine. It aims to bring authentic European flavors to its customers by providing high-quality ingredients, handcrafted products, and elegant silverware, creating a unique dining experience.

Alex honed his skills in this area as a professional olive oil taster by completing his training in ONAOO in 2018. He also serves as a trainer for the Specialty Coffee Association.

With these skills, he ensures that customers receive the finest products and services. To help customers understand European culinary culture better, Alex’s store regularly hosts cooking and coffee classes and wine-tasting events.

These activities allow customers to learn how to create authentic European dishes hands-on and bring the Italian lifestyle to their homes.




Kaohsiung City, Fengshan District, Taiwan



Browse the profile of these other International Registry Members or return to the complete list.

Mazzini Aldo

Aldo holds a degree in Economics & Business Administration from the University of Genoa and a Master’s degree in Communication and NLP with certification from Richard Bandler’s NLP Society.

He has been involved in olive oil professionally for the past 20 years and is now one of the 100 Official Panel Leaders of the International Olive Council (IOC) and does business support in Italy and abroad.

He has experience in the olive oil industry as a Master Blender and Quality control and has worked for Italian and foreign companies such as Deoleo/Carapelli and Sugat Industries Ltd. He has been a professional taster since 2000; he won the overall first prize in 2000 and 2001 in the National Competition “Taster of the Year” organized by ONAOO.

Since 2016, he has been the Ideator & Founder and Organizer of the Masters of Olive Oil International Contest (MOOOIC). He has participated in multiple Juries of National and International competitions both as a member of the Jury and as a Panel Leader.

Aldo has taken part as a keynote speaker in multiple conferences on olive oil in Italy and abroad. He has taught and held Company training courses in Italy and abroad in Italian and English.

Mirko Taioli

Born in Verona in 1983 and raised in the Mezzane Valley, he considers himself a citizen of the world.

With several years of experience in IT, he embarked on a new educational path with O.N.A.O.O. in 2021.

Occasional walks among the olive trees help him relax both body and mind. His studies concluded in March 2024, and he is now a certified O.N.A.O.O. Professional Taster.

Selvi Roberto

Roberto Selvi, catering professional since 2003, he defined himself as a Liquid Master: leitmotif of his job is the excellence in a liquid form! Mixologist and Bar Manager, wine connoisseur and maître, in 2019 he got passionate about the Extra-virgin’s world and in 2023 became a Professional Taster of ONAOO.

His mission is the one to promote the culture of EVOO through the catering sector.

Petacchi Adriano

Adriano was born in Caniparola di Fosdinovo (MS) in 1976. Since 1996 he has been a member of the “Frantoio Moro” family business in Caniparola di Fosdinovo (MS). This activity served to quickly learn the strengths and weaknesses of the oils, and to get to know a large part of this complex matter in a direct and fully detailed way, confronting the various territorial and Italian production companies in general.

In 1999 he became an ONAOO member by participating in the Technical Course for Aspiring Olive Oil Tasters. Since 2002 he has become an ONAOO Professional Taster.

Participates annually in refresher courses organized by ONAOO, where he had the opportunity to get to know the whole world panorama of olive oil, evaluating the different organoleptic characteristics of each area of ​​origin.

Since 2012 he has been a member of the Tasting Committee of the Genoa Chamber of Commerce (Mipaaf recognition). In 2015, with the attainment of suitability for the activity, he was Head of Panel at the Pisa Chamber of Commerce. He is also sworn in national tasting boards.

International Register

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Registration in the register is an authentic value, not only added, but fundamental, for the definition of an effective and convincing business profile

This membership opens the door to all the possibilities that the world of oil offers to the tasting professional.

Official Technical Course

The first step into the world of Tasting

Training as professional olive oil tasters is not only a personal pleasure: the universe that revolves around olive oil and its supply chain also offers a wide range of job, growth and specialization opportunities.

The course is open to everyone, even to those without any experience in the oil sector.

Participants who pass the four selective tests receive a Certificate of Physiological Suitability for Tasting.


Advanced Course

an in-depth knowledge of sensory analysis

The advanced course allows you to consolidate and deepen your knowledge of oil tasting and obtain the qualification of ONAOO Professional Taster, but above all, to be included in the "International Register of Professional Tasters".

The ONAOO advanced course, aimed at inclusion in the International Register of Professional Tasters

Qualified national and international organizations and companies in the sector draw from the Register to find experts in the sector to include in their entrepreneurial realities


Online Courses


To learn how to taste an olive oil directly from your home.

An individual lesson with a tasting professional

A real experience to take the first steps in the world of the oil supply chain and oil tasters.


Certified Tasting Days


Participants are invited to recognize strengths, weaknesses, qualities and organoleptic characteristics of the various oils

Attestation issued by a Panel Head

A practical test in which everything learned during the technical course is applied in practice.

Official Technical Course

Official Technical Course

The first step into the world of tasting

A true expert of "liquid gold" is distinguished from a simple amateur by virtue of his training.

Advanced course

An in-depth study of sensory analysis

It allows you to consolidate and deepen your knowledge on oil tasting and inclusion in the "International Register of Professional Tasters".

Online courses


To learn how to taste olive oil directly from your home.

Certified Tasting Sessions

Certificate issued by a Panel Leader

Certified tasting sessions, held in the manner and within the times required by current legislation.

Official Technical Course

Corso Tecnico Ufficiale

Il primo passo nel mondo dell'Assaggio

Un vero esperto dell”oro liquido” si distingue da un semplice amatore in virtù della sua formazione.

Corso Avanzato

un approfondimento del sapere sull’analisi sensoriale

Consente di consolidare e approfondire le conoscenze sull’assaggio degli oli e l'inserimento nel “Registro Internazionale Assaggiatori Professionisti”.

Corsi Online


Per imparare ad assaggiare un olio di oliva direttamente da casa tua.

Sedute di Assaggio Certificate

Attestazione rilasciata da un Capo Panel

Sedute di assaggio certificate, tenute nei modi e nei tempi previsti dalla normativa vigente.