What Is Thai Iced Tea? Ingredients, Cha Yen & How to Brew

Thai tea ingredients, ingredients for Thai iced tea, black tea for Thai tea, and how to brew cha yen. Why Thai iced tea is orange and creamy.

Glass of Thai iced tea with cream and ice

Thai iced tea is a sweet, creamy, orange-colored drink made from strongly brewed tea, sugar, and milk, usually served over ice. In Thailand it’s called cha yen (ชาเย็น), which means “cold tea.” If you’ve ever wondered what’s in it or how it gets its color and taste, this guide covers the ingredients for Thai iced tea, the black tea for Thai tea, and how to brew Thai tea at home.

What is cha yen (Thai iced tea)?

Cha yen is the Thai name for the drink we call Thai iced tea. Street vendors and cafés across Thailand serve it in a tall glass with a lot of ice, often with a stripe of evaporated or condensed milk. The ingredients for Thai iced tea give it a bold, slightly spicy flavor and its famous orange-red color. The same base is used for hot “cha dam yen” style or for variations like Thai tea with boba.

Thai tea ingredients: what’s in it?

Thai tea ingredients: black tea, star anise, tamarind, condensed milk
Key ingredients for Thai iced tea: black tea, spices, and condensed milk.

The main Thai tea ingredients are:

  1. Black tea – The base is a strong black tea for Thai tea. In Thailand this is usually a mix of black tea (often Assam or Ceylon style) with spices and sometimes a touch of food coloring.
  2. Spices – Star anise, tamarind, and sometimes cardamom or vanilla give the characteristic cha yen flavor.
  3. Sweetener – Sugar or simple syrup; often sweetened quite a bit.
  4. Milk – Condensed milk, evaporated milk, or both. They add creaminess and that layered look when poured over ice.

So when you see “ingredients for Thai iced tea” on a label or recipe, you’re looking at some form of this: black tea (often blended), spices, sugar, and milk.

Why is Thai iced tea orange?

The orange color comes from the way Thai tea ingredients are processed and sometimes from a small amount of food coloring. Traditional cha yen blends can get a reddish-orange tone from the tea and spices; many store-bought Thai tea ingredients (bags or powder) add a bit of coloring so the drink looks like the bright version you get in restaurants. It’s mostly about look and tradition, not flavor.

How to brew Thai tea

To brew Thai tea the right way:

  1. Use black tea for Thai tea – either a dedicated Thai tea blend (bags or loose) or a strong black tea.
  2. Use enough tea and hot water – brew it strong (e.g. 1–2 tbsp per cup of water), since you’ll add ice and milk.
  3. Steep 4–5 minutes (or as the package says), then remove the tea.
  4. Sweeten while hot so the sugar dissolves, then cool and pour over ice.
  5. Add condensed or evaporated milk on top.

If you use a pre-blended product, follow the pack instructions; they’re designed so you can brew Thai tea with the correct strength and color.

Traditional vs modern Thai iced tea

Traditional cha yen uses loose black tea for Thai tea plus spices (star anise, tamarind), sugar, and condensed/evaporated milk. Modern versions often use ready-made Thai tea ingredients (tea bags or powder) that already contain tea and spice—and sometimes coloring—so you don’t have to mix the spices yourself. Both can be authentic; the main idea is strong tea, sweetness, creaminess, and ice.

Summary

What is Thai iced tea? A cold, sweet, creamy drink made from strong black tea for Thai tea, spices, sugar, and milk—known in Thailand as cha yen. The ingredients for Thai iced tea are simple: tea (and/or a Thai tea blend), sweetener, and milk. Once you know the Thai tea ingredients and how to brew Thai tea strong and sweet, you can make it at home or try our classic recipe and boba version.