Does Tim Hortons peppermint tea have caffeine?

If you buy just pure peppermint tea there should not be any caffeine in it. Just to be safe you may want to look at the ingredients to make sure it does not have any type of other tea in it. However though sometimes peppermint teas have other things in them besides just peppermint leaves, it may also say something like bergmont essence but as long as it doesn't say Black Tea or Green Tea in the ingredients it should be fine. The only type of tea it should say in the ingredients is peppermint tea.