Fig. 3

Commercial brands of Vino de Tea in 2020 sampled in the study. From left to right, El Níspero, Taedium by Vega Norte, Viñarda, and Vitega. The tea made by Viñarda en 2019 was employed as control sample before and after ageing in tea. Production is limited and lack of commercial viability threatens the survival of this traditional wine. Source: authors