Twinings warrant, Twinings has been owned by Associated British Foods since 1964. It sells a variety of regional and flavoured teas such as the smoked Lapsang Souchong, the oil scented black tea Lady Grey, and the partially oxidised Indian tea Darjeeling, as well as infusions, coffee, and hot chocolate. The company is associated with Earl Grey tea, a tea infused with bergamot, though it is unclear when this association began, and how important the company's involvement with the tea has been; Jacksons of Piccadilly, originally a rival of Twinings, but bought up by Twinings in the 1990s, also have associations with
Lapsang souchong a marketable product from these less desirable leaves. The leaves are roasted in a bamboo basket called a hōnglóng (), which is heated over burning firewood, which contributes to the dried longan aroma and smoky flavour. Pinewood is used as the firewood for lapsang souchong and imparts the characteristic resiny aroma and taste. The aroma of lapsang souchong is derived from a variety of chemical compounds. The two most abundant constituents of the aroma are longifolene and α-terpineol. Many of the compounds making up the aroma of lapsang souchong, including longifolene, originate only in the pine smoke and are not