TenFu doesn't actually produce much tea from its own properties, as these are used mostly as demonstration farms for the benefit of tourists. Most of the products in the teashops are from other growers who do the bulk of serious production.
天福自營茶區有限，多屬觀光、示範性質，茶莊販售的茶葉，多半還是採取契作或收購模式，例如「台式茶」最大生產者台品企業在福建永福種植的台式烏龍，就是天福的收購對象之一。