Grape treading

Arianne Caoili (left) performing grape stomping during the 3rd Annual Wine Festival in Artsakh
Grape stomping during the a traditional grape harvest festival in Spain.

Grape-treading or grape-stomping is part of the method of maceration used in traditional wine-making. Rather than being crushed in a wine press or by another mechanized method, grapes are repeatedly trampled in vats by barefoot participants to release their juices and begin fermentation. Grape-treading was widespread in the history of winemaking, but with the introduction of industrial methods, it now survives mostly as a recreational or competitive activity at cultural festivals.