The local beverage that every traveller ends up trying at least once is yak butter tea which is unlikely to be a highlight of your trip to Tibet. Made from yak butter mixed with salt, milk, soda, tea leaves and hot water all churned up in a wooden tube, the soupy mixture has more the consistency of bouillon than tea.When mixed with tsampa it becomes the staple meal of most Tibetana and you may well be offered it at monasteries, peoples's houses.