Yes, authentic 100% agave tequila—like many traditional fruit brandies, wine spirits, and fermented beverages—contains natural trace amounts of methanol. These trace congeners are produced organically during the natural fermentation of agave plant sugars and pectin. However, commercially regulated tequila must comply with strict national and international safety standards that limit methanol concentrations to safe thresholds, ensuring it does not pose a health hazard to consumers.