Twinings Cleansing Fennel Tea is naturally caffeine free with all natural ingredients. Made with no added sugar, enjoy anytime of the day. They are selecting very best crops to harvest. Once the flowers wilt and dry, hundreds and thousands of tiny sweet fennel seeds are ready for harvesting. They're what create this incredibly fresh, aniseed-like infusion. Traditionally used to aid digestion, its perfect just after a meal. Fields of yellow fennel flowers glow bright, their towering heads bobbing around in the sunshine. All herbs are gently steamed, the process is gentle to protect their delicate taste.