This steel guitar-laced song leans on a familiar country music theme: the support that alcohol brings. Lambert humorously honors the titular beverage, explaining why tequila brings her more comfort than the beer-guzzling cowboy. The singer goes on to admit that drinking doubles leads her to trouble but nothing else gives her "that border town buzz."
Lambert debuted the song during a gig at the Huntington Center in Toledo, Ohio on September 20, 2019. She introduced it by saying "it's a honky-tonk song and it's about tequila."
The slow, waltzing verses transition to a fast-paced chorus that pairs drums with prominent steel guitar. "'Tequila Does' is country. And country music makes me happy," Lambert said of the song. "No matter how rock or edgy or scorned you can get, when you come back to a country song with a steel guitar, it makes my soul feel like it's on fire."
Lambert wrote the song with her fellow Texans Jack Ingram and Jon Randall. Their previous collaborations together include the singer's The Weight of These Wings track "Tin Man."