Tips for Getting the Layers Right

Pour the Matcha Slowly
The layered effect depends on density. Azuki beans are dense enough to stay at the bottom naturally. The matcha, however, needs to be poured slowly over the back of a spoon so it settles above the beans without sinking straight through.
If you are making the iced version, the ice acts as a buffer and makes layering even easier, just pour the matcha directly over the ice before adding milk.
Whisk the Matcha Properly
A proper matcha whisk (chasen) gives the best result, but a small electric milk frother works well too. The goal is to fully dissolve the powder and build a light foam, this helps the matcha layer hold its shape above the azuki.
Use water that is around 80°C (175°F), not boiling. Boiling water makes matcha bitter and kills the delicate grassy notes that make the azuki and matcha pairing so satisfying.
Why Azuki and Matcha Work So Well Together?

A matcha red bean latte is built around the classic Japanese pairing of earthy green tea and sweet azuki beans, a combination you find in everything from wagashi sweets to shaved ice. Translating it into a latte format brings that same balance into a daily drink.
An azuki matcha latte sits in a different category from your average café drink. The azuki sits at the bottom of the glass, providing a dense, subtly sweet base. The matcha layer above it is slightly bitter, which cuts through the sweetness and stops the drink from feeling heavy.
Ceremonial vs. Culinary: Which Matcha to Use?
Ceremonial grade matcha is worth using for this matcha red bean recipe. Its colour is a vivid, saturated green, and its flavour is smooth and umami-forward without the grassy bitterness you get from culinary grade powder.
Because the matcha is whisked with only a small amount of water, its flavour is quite concentrated in the final red bean matcha drink. A lower quality powder will taste flat or sharp here in a way it might not in a recipe that uses a larger volume of liquid.
NioTeas ceremonial grade matcha is shade-grown and stone-ground, cultivated without pesticides, which preserves both its L-theanine content and that characteristic deep green colour.
Azuki: Whole Beans vs. Paste
Both sweetened whole azuki beans (tsubu-an) and smooth red bean paste (koshi-an) work in this matcha red bean recipe, and the choice changes the texture of the drink noticeably. Whole beans give a chewier, more textured base and closer to the experience of drinking boba. Paste gives a creamier, more uniform layer.
The azuki matcha combination works with either form. Store-bought sweetened azuki is perfectly fine and widely available in Asian grocery stores. If you prefer to control the sweetness, you can simmer dried azuki beans with sugar at home, which takes about 45 minutes.
Serving It Hot or Iced
Matcha Red Bean Latte drink works in both formats. Served hot, it is comforting and closer to a traditional Japanese zenzai-inspired drink. Served iced, it is refreshing and visually striking. The layers hold longer and the contrast between the dark azuki and the bright green matcha is more vivid.
The matcha azuki combination is particularly good over ice in warmer months. For an iced matcha red bean milk tea style preparation, add a few tablespoons of cold milk instead of steamed milk, and pour everything over a glass packed with ice. Stir just before drinking.
If you'd like to explore a fruity twist on matcha beyond red bean flavors, try this refreshing option 👉 Raspberry Matcha Latte with Fresh Berry Flavor