To a large extent tastes are regional and based on cultural background. Particularly in the case of acquired tastes such as for spicy or astringent food, there

To a large extent tastes are regional and based on cultural background. Particularly in the case of acquired tastes such as for spicy or astringent food, there's a clear in-group/out-group bimodal distribution of preference. Obviously individual variations exist, but the opinions of your friends and family are far from being irrelevant data.