tea
Infusion made from the dried leaves of the tea tree; drunk hot or iced, it is the world’s most popular beverage after water; it is sold in bags or loose.
oolong tea 
Semifermented tea; it has a stronger flavor than green tea but is more delicate-tasting than black tea.
green tea 
This unfermented product is very popular in China, Japan and Muslim countries; it has a more bitter taste than black tea.
tea bag 
Filled with ground leaves, it is often less flavorful than loose tea, which is composed of whole leaves.
black tea 
Made from tea leaves that are fermented and then dried, it represents more than 98% of the total worldwide production of tea.