moderately unacceptable, 4 = slightly unacceptable, 5 = between acceptable and unacceptable, 6 = slightly acceptable, 7 = moderately acceptable, 8 = very much acceptable and 9 = extremely acceptable (Ranganna, 1994). The panellists were trained in three separate sessions approximately 2 h long for each evaluation of the selected attributes. Training sessions were conducted to acquaint panellists with the products and attributes to be evaluated, and were followed by an open-discussion session to familiarise panellists with the attributes and the scale to be used.