Where listed, the flavour in all our teas is food grade and is made of all-natural molecules that are found in nature, made in an artificial process. We use a higher concentration of these compounds than what is found in nature to give an intense flavour and to maintain seasonal consistencies amongst the teas. If a flavour contains or is made up of any allergen or of any other ingredient (like sugar for example) this will clearly be displayed in the ingredient listing.