A box of 16 mugicha teabags used for making glasses of cold mugicha tea on ice 1 teabag makes 1 litre of tea when left for 12 hours in the fridge mugicha is made from roasted barley and is one of japans most popular summer beverages like other teas mugicha is rich in antioxidants called polyphenols these keep the heart healthy and aid general well being