How to Make an Iced Matcha Latte Without Clumps

By Carl Williams (Author Carl) — practical food guides, clear explanations and serving ideas.

In brief: A straightforward method for a smooth, refreshing matcha drink.
Food photography for iced matcha latte recipe

A straightforward method for a smooth, refreshing matcha drink. In the sections below, we explain the choices that make the biggest difference, with practical examples and ways to use the products in your kitchen.

Ingredients for one glass

Use approximately 2 g matcha, 40–60 ml water, 150–200 ml cold milk or a suitable plant-based alternative, and ice. Sweetener is optional. The final flavour depends on the matcha, milk and dilution from melting ice.

Practical tip: A kitchen scale is more reliable than judging powder by eye.

Make a smooth matcha concentrate

Sift the matcha into a small bowl. Add a splash of water and stir into a smooth paste before adding the remaining water. Whisk or froth until there are no visible clumps. Water around 70–80°C can help mixing; let the concentrate cool before pouring it over ice.

Practical tip: Avoid adding dry matcha directly to a full glass of cold milk: it often forms stubborn lumps.

Build the latte

Fill a tall glass with ice and add the cold milk. Pour the matcha concentrate slowly over the top for a layered appearance, then stir before drinking. A smaller amount of ice gives a stronger-tasting drink as it melts more slowly.

Practical tip: Use a clean glass and prepare the drink immediately before serving.

Adjust sweetness and strength

Taste the unsweetened version first. Some milks have their own natural sweetness, and too much syrup can hide the tea flavour. If you want a stronger drink, use slightly less milk or a little more matcha.

Practical tip: For an extra-smooth finish, sift the powder even when using an electric frother.

Common mistakes

Too-hot water can exaggerate bitterness; too little whisking leaves clumps; and excessive ice dilution can make the latte watery. An unpleasantly flat taste may also indicate matcha that has been stored poorly or is no longer fresh.

Practical tip: Store the matcha pouch tightly closed and away from heat, moisture and light.

Choose your matcha

The flavour of the finished drink is affected by the tea itself. Try the recipe with Author Carl Japanese Matcha, then adjust the ratio until it suits your taste.

Practical tip: Matcha contains caffeine, so consider your own tolerance, particularly later in the day.

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