ITO EN Oi Ocha Green Tea Unsweetened. Japan's No.1 green tea brand. 0 Calories per bottle. 16.9 fl oz / 500 ml. Oi Ocha (oh-ee oh-cha) is Japan's No.1 green tea brand and means "Tea, please!". Enjoy this bottled green tea produced by ITO EN, Japan's foremost tea purveyor. No sugar or calories. Brewed from premium whole tea leaves, not tea concentrates or powders. No added colors or flavors. Non GMO Project Verified. nongmoproject.org. Email: comments@itoen.com. Visit: www.itoen.com. © 2014 ITO EN (North America), Inc.