Siempre Tequila Añejo (1438) is a tequila created by Augustin Sánchez Rodriguez, distilled at Tequila Valley Distiller (Casa Maestri) in Lowlands/El Valle, Tequila. It is cooked in Stone/Brick Ovens and crushed using a Roller Mill. The type of fermentation is Closed tank, and the spirit is distilled in Pot Still. Bottled at NOM #1438 with 100% agave, it is released at 40% abv (80-proof).