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Matcha latte builder. Your exact recipe.

Pick your drink, your cup and your milk. Get the grams, the level teaspoons, the water temperature and the steps. Then save it as a recipe card.

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Iced latte, hot latte, straight usucha, matcha lemonade or a protein shake add-in.

A Green Hour recipe card for a 16 oz iced oat matcha latte, made with the builder
1. Your drink
2. Cup size

The whole glass, ice included. About half of it will be ice.

3. Milk
4. Sweetness
5. Strength

New to matcha? Start soft. You can always go up.

greenhourmatcha.pages.dev/matcha-latte-builder
Your recipe

16 oz Iced Oat Matcha Latte

classic · lightly sweet

Matcha2 g1 level tsp
Water2 oz60 ml
Water temp175°F80°C · hot, not boiling
Milk6 oz180 ml oat milk
Sweetener1 tspmaple or simple syrup

Step by step

  1. Sift 2 g matcha (1 tsp) into a small bowl.
  2. Add 2 oz water at 175°F. Whisk in a W, 20 seconds.
  3. Fill the 16 oz glass with ice. Add 6 oz cold oat milk.
  4. Stir 1 tsp syrup into the milk.
  5. Pour the matcha on top, slowly. Stir, then sip.
  • No thermometer? Boil the kettle, then wait about 2 minutes.
  • No whisk? Shake the matcha with the water in a small jar for 30 seconds.

Caffeine: roughly 40–90 mg. Matcha varies a lot: published measurements run from about 19 to 44 mg of caffeine per gram (Kochman et al., Molecules, 2021). This is a general range, not a lab test of any one matcha.

Your recipe card, ready to save
Your recipe card

Pin it. Print it. Stick it on the fridge.

The card updates as you change your drink. It saves as a tall PNG (1000 × 1500, the Pinterest size), so it looks right on your phone, on a pin board or printed on the fridge door.

How the builder measures

Everything starts from the recipe on our card: 2 g of matcha (1 level teaspoon) for 8 oz of liquid, whisked with water at 175°F (80°C). From there:

  • Iced: about half the glass is ice, so a 16 oz glass holds 8 oz of liquid: a 2 oz matcha shot and 6 oz of cold milk.
  • Hot: the mug is filled to about 85%, leaving room for foam.
  • Bigger cups: the matcha grows a little more slowly than the cup, so a 20 oz drink doesn’t turn bitter.
  • Strength: soft is half a gram less than classic, bold a gram more.
  • Lemonade and shakes: cold liquid, shaken or blended. No kettle.

Grams of matcha by cup size (soft / classic / bold)

CupIced latteHot latte
8 oz0.5 / 1 / 1.5 g1.5 / 2 / 3 g
12 oz1 / 1.5 / 2 g2 / 2.5 / 3.5 g
16 oz1.5 / 2 / 3 g2.5 / 3 / 4 g
20 oz2 / 2.5 / 3.5 g3 / 3.5 / 4.5 g

1 level teaspoon is about 2 g. A heaped one can hold 3 g, which is why the builder gives both. Bitter cup? It’s almost always the water: see why matcha tastes like grass, or the full iced matcha latte recipe.

Good questions.

How much matcha do you use for an iced latte?

About 2 g (1 level teaspoon) for a 16 oz glass filled with ice, whisked with 2 oz of water and topped up with 6 oz of cold milk. Use 1.5 g for a softer latte or 3 g for a bolder one. For a 20 oz glass, 2.5 g.

What temperature should the water be for matcha?

175°F (80°C), hot but not boiling. Boiling water is the usual reason matcha tastes harsh. No thermometer? Boil the kettle and wait about 2 minutes. For matcha lemonade or a shaker bottle, cold water works too.

How many teaspoons is 2 grams of matcha?

About 1 level teaspoon. A heaped teaspoon can hold closer to 3 g, which is why the builder gives both grams and level teaspoons.

How much caffeine is in a matcha latte?

It depends on how much matcha you use and on the matcha itself. Published measurements range from about 19 to 44 mg of caffeine per gram of matcha (Kochman et al., Molecules, 2021), so a latte made with 2 g has roughly 40 to 90 mg. The builder shows the range for your recipe.

Can you add matcha to a protein shake?

Yes. Add 1.5 to 2 g of matcha straight into the blender with your milk, protein powder, half a frozen banana and ice, then blend for 30 to 45 seconds. No hot water or whisk needed.

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