Cocktail connoisseurs consider the pisco sour a South American classic. Chile and Peru both claim the pisco sour as their national drink, and each asserts ownership of the cocktail's base liquor—pisco; consequently, the pisco sour has become a significant and oft-debated topic of Latin American popular culture. The two kinds of pisco and the two variations in the style of preparing the pisco sour are distinct in both production and taste. Peru celebrates a yearly public holiday in honor of the cocktail during the first Saturday of February.