The caffeine-free infusion is a popular hot drink in winter. Along with bori-cha (barley tea), oksusu-cha is one of the free grain teas served in many restaurants in place of water.
A popular hot drink during the winter months is a caffeine-free infusion. Many restaurants offer it alongside barley tea, or oksusu-cha, which is another type of grain tea that replaces water on their menus.