Japan’s No.1 Green Tea

Oi Ocha image

ITO EN - Japan's No. 1* Tea Drink Company -

Introducing the "flavor" and "fun" of Japanese tea to the world.

*Unit Sales from January 2017 to December 2017

Through our own unique techniques, we rearrange the culture of Japanese "Green Tea" to suit the lifestyles of the people in the world, contributing to a healthy and joyful everyday life with "flavor" and "fun."



  • Cold
    Japanese Green Tea

    Oi Ocha Japanese Green Tea

    An aromatic and mild
    tasting tea drink

  • Cold
    Strong Green Tea

    Oi Ocha Strong Green Tea

    Utilizing Japanese tea leaves
    bursting with catechins,
    this Green Tea drink has
    a refreshing and astringent taste.

  • Hot
    Japanese Green Tea

    Oi Ocha Japanese Green Tea

    A tea drink ideal for drinking hot,
    thanks to appropriate
    ingredients and manufacturing methods.

  • Tea Leaves Tea Bags Instant Tea

    Tea Leaves / Tea Bags
    / Instant Tea

    We sell tea leaves for Japanese teapots
    (Kyusu), teabags, and instant tea
    so that everyone can enjoy genuine
    Japanese tea.


About Oi Ocha

Oi Ocha is the best-selling brand for Japanese tea Drinks and pays great attention to the aroma and taste of freshly brewed, Japanese teapots (Kyusu) made tea. We offer a wide range of tea Drinks, tea Leaves, and Instant tea. Our brand name hails from a word that relates to the desire of drinking tea at home with one's family. All our tea Leaves are domestically produced. We purchase our tea directly from tea farmers in the pursuit of the finest aroma and taste.

We attach great importance to the management records of the tea farmers, especially to the use of pesticides, making sure our products are safe and secure. All our products are marked with numbers to ensure "traceability" of factory, manufacturing date, raw materials, and the growing conditions of the farm. Our tea Drinks utilize tea that has been brewed in Japanese teapots (Kyusu), in search of the finest aromas and tastes. As a business that strives for the growth of tea production areas, we grow tea that is suitable for beverages.

tea leaf

What We're Good At!

No. 1 Green Tea Drink
Domestic Share

Loved by Japanese tea drinkers for over 30 years.
Launch of Japan's No.1 Oi Ocha brand.
Developed on the concepts of "natural", "healthy", "safe", "well-designed" and "delicious", we have realized the natural flavor of tea brewed in Japanese teapots (Kyusu).

36% Market Share for Green Tea Drinks
Over 25 billion plastic bottles sold since launch of product (500ml bottles)

No. 1 Green Tea Drink Domestic Share

Excellent Quality Control
and Examination System

All tea leaves and tea bags are manufactured in our own factories where drinks products satisfy quality control standards. Both ingredients and products undergo flavor and machinery analysis, and tests for microbes and remains of pesticides at both our factory and company. We share information with our manufactoring factories and through the regular carrying out of quality control meetings with a representative from the factory, we aim for the production safe and reliable tea products.

Excellent Quality Control and Examination Syste

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