S.C. Code Ann. § 61-4-720
Notwithstanding another provision of law, a licensed winery located in this State is authorized to sell wine produced on its premises with a majority of the juice from fruit and berries which are grown in this State 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 wineries are authorized to provide, with or without cost, wine taste samples to prospective customers.