A holder of a winery permit may give one or more unopened bottles of Texas-made wine produced or bottled by the winery to a person 21 years of age or older on the premises of a convention center or civic center that holds a mixed beverage permit if no charge is made by the winery or by the mixed beverage permittee for the wine. A recipient of a bottle of wine under this section must take the unopened gift bottle off the premises of the mixed beverage permittee.
Tex. Alco. Bev. Code § 102.19