The IBA (IBA Official list of Cocktails) standard is 7:4:3, that is, 50% tequila, 29% Cointreau, 21% fresh lime juice.
A IBA (Lista Oficial de Cócteles da IBA) recomenda o estándar 7:4:3, é dicir, 50% tequila, 29% Cointreau, 21% de zume de limón fresco.