Pure Peppermint Naturally Caffeine Free K-Cups.The Twinings Story. In 1706 Thomas Twining began selling fine tea from an English storefront in The Strand, London. Today, Twinings still sells some of the world's best teas from the original store and in more than 100 countries throughout the world. Pure Peppermint. Create an uplifting moment with Twinings Pure Peppermint Herbal Tea. Expertly blended using only 100% pure peppermint, this delightful tea has a fresh mint taste and invigorating aroma. For over 300 years, Twinings has been sourcing and blending the finest, high-quality teas from around the globe to ensure that your tea has the perfect balance of tea taste, flavour and aroma. Twinings blends to perfection the finest herbs, fruits and spices to give you a line of great-tasting herbal teas with an appetizing flavour, fresh taste and inviting aroma. Whatever your mood--there's a blend for every occasion.