Why Is Matcha Bitter? 9 Causes and Solutions
Is your matcha very bitter, harsh or aggressive? The cause is often preparation rather than the matcha itself. Water that is too hot, too much powder, poor storage or a profile that is not suited to drinking with water can make a balanced cup difficult to enjoy.
Japanese matcha can naturally have slight bitterness and astringency, but these should remain balanced by freshness, roundness and umami.
Quick answer: start with 1.5–2 g sifted matcha, 60–80 ml water and 70–80 °C. If it is still too bitter, try cooler water before adding more milk or sugar.
What should good matcha taste like?
A good profile can combine fresh vegetal notes, umami, natural sweetness, round texture and light bitterness. Bitterness becomes a problem when it dominates everything else.
1. Water is too hot
Boiling water is one of the most common causes. Start around 70–80 °C. See our water-temperature guide.
2. Too much powder
More powder increases intensity, umami, bitterness and astringency at the same time. Start with 1.5–2 g and use a small scale for consistent tests.
3. Too little water
The powder-to-water ratio matters. Two grams in 40 ml is far more concentrated than 2 g in 80 ml.
4. The matcha profile is wrong for the use
Some matchas are intentionally stronger for milk, sugar or pastry. For water, look for a smooth, fine, umami-rich and low-bitterness profile. See our guide by application.
5. Loss of freshness
Air exposure can weaken aroma, dull colour and make the flavour feel flatter or harsher.
6. Poor storage
Protect matcha from air, heat, light, humidity and strong odours. If stored cold, let the sealed package gradually warm before opening to reduce condensation.
7. Water quality
Very hard or strongly chlorinated water can hide tea finesse. Compare with filtered or lightly mineralised water if needed.
8. Not sifting
Matcha particles remain suspended rather than dissolving like sugar. Sifting reduces concentrated clumps and improves texture.
9. Expecting a sweet drink
Pure matcha is vegetal and umami. It can be naturally smooth, but it will not taste like a sweetened latte.
How to make matcha less bitter
- Lower water to 70–75 °C.
- Use 1.5–2 g powder.
- Use about 70 ml water.
- Sift.
- Whisk for 15–20 seconds.
- Taste immediately.
- Try different water if needed.
- Check freshness and storage.
For matcha lattes
Try 2 g matcha, 30–40 ml water at 75–80 °C and 150–180 ml milk. If matcha disappears behind milk, reduce the milk slightly before dramatically increasing the dose.
Maison Yume Yame Matcha
Maison Yume works directly with a family-run tea farm in Yame, Fukuoka. Our Yame Matcha is selected for a smooth, low-bitterness and umami-rich profile with enough intensity for lattes while remaining enjoyable with water.
