To carry out the aging process, blanco tequila is poured into wooden barrels or vats where it remains for a period of time that varies according to the desired type of tequila. For rested and aged tequila, the barrels should hold no more than 600 liters.


Tequila is generally aged in either French or American white oak barrels, which give the liquor its distinctive golden color. The may be new or they may have been used for other kinds of spirits. They may also be treated by charring or “toasting” the inside, which will five the tequila a different flavor.