S.C. Code Ann. § 61-4-720
Notwithstanding any other provision of law, a licensed winery in this State which produces and sells only domestic wine as defined in Section 12-21-1010 is authorized to sell the domestic wine with an alcoholic content of sixteen percent or less on the winery premises and deliver or ship this wine to consumer homes in or outside the State. These domestic wineries are authorized to provide without cost wine taste samples to prospective customers.