Does Thai Tea Have Caffeine?

Thai tea, a popular beverage with origins in Thailand, has become a favorite for many around the world. Known for its rich flavor and bright orange color, Thai tea is often served cold with sweetened condensed milk.

But a question that often comes up is, does Thai tea have caffeine? The quick answer is yes, thai tea contains 40-60 mg of caffeine depending on the types of black tea used as a tea base.

Thai iced tea

What is Thai Tea?

Thai tea, also known as “cha-yen” in Thailand, is a sweet and creamy iced tea that is made from black tea leaves, spices, and sugar. It is usually brewed with a blend of spices, such as star anise, tamarind, and cardamom, which gives it a distinct flavor profile.

The vibrant orange color is derived from the addition of food coloring or the use of specific tea leaves that have a natural orange hue.

To create the characteristic creaminess, sweetened condensed milk or evaporated milk is poured over the brewed tea.

How Much Caffeine Does Thai Tea Have?

The caffeine content in Thai tea varies, depending on factors such as the type of black tea used and the brewing process. On average, a typical 8-ounce (240-milliliter) serving of Thai tea contains between 40 and 60 milligrams of caffeine. This amount can be compared to the caffeine content of other beverages to give you a better idea of how much caffeine you’re consuming.

It’s important to note that the caffeine content in Thai tea can vary significantly based on how it’s prepared. If you’re looking to control your caffeine intake, be sure to inquire about the preparation method and tea used when ordering Thai tea at a restaurant or cafe.

Thai Tea Caffeine vs. Coffee

When comparing the caffeine content of Thai tea to coffee, it’s clear that coffee generally contains more caffeine. An 8-ounce (240-milliliter) cup of coffee typically has between 80 and 100 milligrams of caffeine, while the same serving of Thai tea has approximately 40 to 60 milligrams. However, this comparison can be deceiving, as Thai tea is often consumed in larger quantities than coffee.

A common serving size for Thai tea is 16 ounces (480 milliliters), which means that a single serving may contain between 80 and 120 milligrams of caffeine, potentially putting it on par with or exceeding the caffeine content of a cup of coffee.

Factors Influencing Caffeine Content in Thai Tea

Several factors can influence the amount of caffeine in Thai tea, including:

  1. Type of tea leaves: Different black tea leaves can have varying levels of caffeine, which will directly affect the caffeine content in Thai tea.
  2. Brewing time: The longer the tea leaves are steeped, the more caffeine is extracted. Therefore, a longer brewing time can lead to a higher caffeine content.
  3. Serving size: As mentioned earlier, Thai tea is often served in larger quantities than coffee, which means that a single serving may have a higher caffeine content than initially expected.


Thai tea does contain caffeine due to its primary ingredient, black tea leaves. The amount of caffeine can vary based on factors such as the type of tea leaves used and the brewing process.

Comparing the caffeine content of Thai tea to coffee, it is generally lower, but the larger serving sizes of Thai tea may result in similar or higher caffeine consumption.

If you’re trying to monitor your caffeine intake, be aware of the factors that influence the caffeine content in Thai tea and adjust your consumption accordingly.

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