**3.5 Test samples**

Both participating panels did evaluate the same selection of 10 olive oils (same lot number) "*in situ*" (in the sensory laboratory) and "remote" (at home testing stations), see **Table 4**. The order of testing was the same in all test situations but in each test situation individual three-digit codes were used to avoid influencing the testers.


**Table 3.** *Validation criteria.* *Sensory Evaluation of EVOO: Do Different Test Locations Have a Relevant Impact on Data… DOI: http://dx.doi.org/10.5772/intechopen.102702*


#### **Table 4.**

*Test samples.*

## **3.6 Data collection**

Both participating panels did evaluate the test samples in the same period, but independently. The evaluation criteria on the used profile sheets from both panels (electronically/paper) were identical, corresponding with the EEC regulation 2568/91 [1].

### *3.6.1 Swiss olive oil panel/SOP*

To collect data in the sensory laboratory of ZHAW, panelists from SOP are provided with PC's in the test booth, equipped with the sensory software "Fizz" (Biosystemes Fizz for Windows 2.46 A), which allows direct electronic recording of individual panelist data on an electronic profile sheet.

For the collection of data at home testing stations, panelists from SOP use a profile sheet (paper) and transfer individual panelist data, online via the internet, to the panel leader, using the software "LimeSurvey."

#### *3.6.2 German olive oil panel/DOP*

To collect data in the sensory laboratory situation, panelists from DOP are provided with PC's in the test booth, equipped with the software "SENSORY" (IMEDIA), which allows direct electronic recording of individual panelist data on an electronic profile sheet.

For the collection of data at home testing stations, panelists from DOP use a profile sheet (paper) and transfer individual panelist data, online via the internet, to the panel leader, using the software "SENSORY" (IMEDIA).

### **3.7 Data evaluation (assessment)**

All results of the different tasting sessions with all panelists and all panels were combined to a common data set, using the software program "Excel" (Microsoft

Office Excel 365). The following data evaluation was done with help of the Add-in Software "XLStat" (version 2020).
