In order to investigate extra virgin olive oil acceptance, preference
tests were carried out on two olive oil consumer groups, representativ
e of two different cultures and traditions. The first consumer group c
onsisted of 20 South Italian families from Potenza. The second group c
onsisted of 152 Northern individual consumers tested in Milan. These t
ests were carried out on 6 oils (2 Greek, 2 Spanish and 2 Italian) pro
duced during the 1992-93 season. Similar methods were employed in both
tests but they were carried out under completely different environmen
tal conditions. For our testing of the 20 families we tried to ensure
that the consumption conditioned remained as traditional as possible.
On the contrary, the test carried out on the 152 consumers was more st
andardized and allowed a direct comparison between the samples. The re
sponses to preference tests were processed using the PREFMAP statistic
al method. The preferences of Southern Italian consumers are sharply d
ifferentiated: what is considered to be optimal for a consumer may be
unacceptable for another one. Whereas the preferences expressed by the
consumers of a city in Northern Italy is more homogeneous. Therefore,
for both Southern and Northern Italian consumers, the sensory profile
of extra virgin olive oil should be programmed and standardized. This
allows maximum acceptability to be obtained and consumer expectations
to be fulfilled.