Eating 12 grapes on New Years is a Superstition and Tradition of Spain.
Sometimes A Spaniard will skip eating the grapes and supposedly poisoning their fate for the New Year.
The Tradition of Eating 12 grapes on New Years has to do with luck and the tradition consists of eating a grape with each bell strike at midnight of December 31.
And according to the 12 grapes on New Years tradition, eating the grapes leads to a year of prosperity.