Peppermint, chamomile and rosehips create a soothing and refreshing cup. caffeine free. pronounced like the first part of the word "shower," xiao's blend is a peet’s favorite. early in peet’s history, one of our coffee roasters asked the tea packer to mix up some herbs so he could have a caffeine-free drink. she obliged with this blend. the packer’s name was xiao, and over the years the blend has come to bear her name. xiao’s blend contains peppermint, chamomile, and rosehips. peet's herbals offer a flavorful cup without the caffeine.. (per lb) 23.80