(Photo: Courtesy of AFP Photo/Carl Court)

To be spearheaded by pastry chef Jordi Roca, who makes up one third of the Roca brothers, the bean-to-bar chocolate factory will open in Girona, Spain. El Celler de Can Roca, which has bagged the title of world's best restaurant twice, is also in Girona, in Catalonia.

Details for the project are scarce, but during a recent talk at a conference in Barcelona for the World's 50 Best Restaurants, eldest Roca, Joan, said Jordi has been making chocolates at the restaurant for some time using cacao from Peru. The Rocas also runs a gelateria called Rocamboles in the city.

(Related: Spanish Chef Joan Roca on the Responsibility of Running the World's Best Restaurant)

In the same talk, Joan hinted at another project that's in the works, evoking the restaurant's one-off 2013 event El Somni, which was called a gastro-opera and involved music, poetry, art and imagery along with a multi-course meal.

Calling El Somni a launchpad of things to come, Roca said he's been working with the local Vall d'Hebron University Hospital to study how different moods and situations can impact the dining experience.

"It has been scientifically proven that if a dish is explained to you well, you will digest it better," he said.

Tags: Roca Brothers, El Celler de Can Roca, Spanish restaurant, Spanish cuisine, World's 5 Best Restaurants