Summarize this article in one sentence.
Green tea isn’t fermented for very long, so it is less astringent than black tea and has less caffeine. A green tea base makes a light, refreshing base for your boba tea.  Green tea bases are best paired with fruit flavors. Some shops will offer white tea, which is an even lighter tea than green. You might also be able to choose from specialty green tea bases like peach green tea, or green tea chai. Black teas are fermented for longer than white and green teas. They have a stronger, more astringent flavor, and can have up to 30 percent caffeine. A black tea will provide a strong and flavorful base for your boba tea.  A black tea base pairs well with both fruit flavors and creamy, nutty, or chocolate-y flavor profiles. You may also see Oolong tea as an option for a base flavor. Oolong tea is in between green and black teas in both caffeine content and flavor. Like black tea, they combine well with both the fruity boba flavor options and the creamy ones. Choose between standard cow’s milk and a wide variety of milk alternatives. Milk based boba teas are a natural fit with flavors like coffee, chocolate, chai, almond, or caramel.  Milk alternatives include: almond, coconut, soy, and oat. Expect to pay 50 cents to 1 dollar extra for these substitutes. If you want a fruit flavored drink but want to balance the sweetness of the fruit with some fat, try a milk base. A good example of this is a mango flavored boba tea with a coconut milk base. Be aware that some shops use condensed milk which can double the sugar content of your drink. Ask your server about the milk they use if you’d rather avoid this very sweet alternative. Whether you choose a tea base or a milk base, you will also need to decide on your preferred temperature and texture. On a cold day, enjoy sipping on a warm boba tea. On a hot day, choose between an iced or blended boba tea. If you don’t want a milk base but still crave something creamy, try a blended tea base. The crushed ice will provide the creaminess you want.

Summary:
Choose green tea if you don’t want a creamy drink or too much caffeine. Select a black tea base if you are up for a little caffeine. Try a milk based boba tea if you are in the mood for something creamy. Decide whether you’d like a hot tea, an iced tea, or a blended tea.