Corazon William Larue Weller Expresiones Aejo – The aging of Expresiones is what makes these tequilas truly remarkable. Buffalo Trace Distillery barrels infuse the Blanco with unique character, enticing the palate with the charm of its age and char. They are stored in the first row at Casa San Matias aging facility to ensure the ideal level of airflow to aid in the aging process. The barrels are then evaluated every 2 months and monitored until the desired characteristics are achieved.