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School of Life Sciences
and Facility Management

Expert Evaluation: Olive Oil Award (OOA)

The Olive Oil Award (OOA) aims to strengthen consumer confidence in the product "Extra Virgin Olive Oil" and to promote transparency in the olive oil market. The project provides a current overview of the quality of olive oil offerings on the Swiss and EU markets.

The sensory assessment of the extra virgin olive oils participating in the OOA is carried out in three steps by a jury - the Swiss Olive Oil Panel (SOP) of the ZHAW, a group of trained olive oil evaluators. Detailed test reports are made available to participants after the competition.

Olive oils that demonstrate sensory excellence based on the applied objective criteria are awarded either "Gold," "Silver," or "Bronze".

Test step 1 Test step 2 Test step 3
Orientation Tasting (Screening)
Goal: Selection of oils for Panel Test 1
Panel-Test 1
Goal: Selection of oils for Panel Test 2
Panel Test 2 (= Decision Tasting)
Goal: Awarding of oils with Gold, Silver, Bronze
» 3 Experts (evaluators from the SOP)
» Assessment of fruitiness (light, medium,
intense)
» Detection of potential defects
» Results with indicative character
» SOP - accredited according to ISO 17025
» Extended Profile Sheet (validated)
» Sensory laboratory
» Coded test samples
» Minimum number of evaluators n = 8 - 10
» Statistically significant results
» SOP – accredited according to ISO 17025
» Extended Profile Sheet (validated)
» Coded test samples
» Minimum number of evaluators n = 8 - 10
» Statistically significant results

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