Bartenders attempt to make the world's biggest pisco sour

The video covers an event celebrating the national day of Pisco Sour, highlighting the attempt to set a Guinness World Record for the largest Pisco Sour. Key figures such as Luis Matías and Evan Cifuente are introduced, and the cultural significance of the event is emphasized. The video concludes with acknowledgments to contributors and participants.

¿Qué se busca promover en el día del Pisco Sour según el texto?

¿Qué agradecimiento se menciona al final del texto?