Table 8.

Results of Friedman tests for comparison of WTP ranks for each wine and at each stage of the experiment for consumer group 2 (21 consumers). Friedman test, post hoc Nemenyi test; NS: not significant; * p > 0.05; ** p > 0.01.

	WTP Sensory Stage	WTP Sulphites Stage	WTP Label Stage
No added sulphites vs. modified organic	NS	NS	NS
Organic vs. modified organic	NS	NS	NS
Conv. vs. modified organic	NS	NS	NS
Conv. vs. no added sulphites	**	**	**
Conv. vs. organic	**	**	**
Organic vs. no added sulphites	**	**	*