Freshly brewed green tea being poured into a glass cup from a teapot

Why Does My Green Tea Taste Bitter? 7 Common Mistakes

September 13, 2026

Green tea can be delicate. When it tastes harsh, bitter or overly astringent, the problem is often not the tea itself but the way it has been brewed. Small changes in water temperature, steeping time and the amount of tea can make a noticeable difference.

At ArtTeas, we believe good tea should be understood before it is judged. Green tea has natural bitterness and astringency, but a well-brewed cup should still feel balanced, fresh and enjoyable.

1. Your Water Is Too Hot

One of the most common reasons green tea becomes bitter is water that is too hot. Unlike many robust black teas, green teas generally respond better to gentler brewing.

Allow freshly boiled water to cool before pouring it over the leaves. A practical starting point is around 75–85°C, then adjust according to the particular tea and your taste.

2. You Are Steeping the Tea for Too Long

Longer does not always mean stronger or better. Extended steeping can extract more bitter and astringent compounds from the leaves.

Start with a shorter infusion and taste it. If you want more intensity, increase the steeping time gradually rather than leaving the tea to over-infuse.

3. You Are Using Too Much Tea

Using a generous spoonful of leaves may seem like the easiest way to make a stronger cup, but too much leaf can produce an unbalanced infusion.

Follow the brewing guidance for your tea and adjust gradually. The goal is balance between leaf, water, temperature and time.

4. The Tea Is Sitting in the Water

If the leaves remain in the cup or pot after the desired brewing time, extraction continues. This is particularly noticeable when using a tea bag without removing it.

Use an infuser that allows you to remove the leaves easily. This gives you much greater control over the final cup.

5. Your Water May Be Affecting the Taste

Tea is mostly water, so the character of your water matters. Very hard, heavily mineralised or strongly treated water can change the way delicate green tea tastes.

If your tea consistently tastes flat or harsh despite good brewing technique, try filtered water and compare the result.

6. You May Be Confusing Bitterness with Astringency

Bitterness and astringency are not identical. Bitterness is a taste sensation, while astringency is the drying or puckering sensation you may feel in the mouth.

Some astringency can be part of a tea's character. The aim is not necessarily to eliminate it, but to brew the tea so that its fresh, vegetal, floral, fruity or sweet notes remain in balance.

7. The Tea May Simply Need a Different Brewing Style

Different green teas respond differently to brewing. A delicate green tea may prefer cooler water and a shorter infusion, while another tea may tolerate a slightly warmer or longer brew.

Instead of searching for one universal recipe for all green teas, treat brewing as part of the tasting experience. Change one variable at a time and note what happens.

A Simple Starting Recipe for Green Tea

For a fresh, balanced cup, start with approximately 2–2.5 g of tea for 200 ml of water, water around 75–85°C, and an infusion of about 2–3 minutes. These are starting points rather than strict rules.

Taste the liquor. If it is too strong or bitter, reduce the temperature or steeping time. If it is too light, increase the amount of tea or slightly extend the infusion.

The ArtTeas Approach to Better Green Tea

Tea tasting is about observation. Look at the dry leaf, notice the aroma, taste the liquor and pay attention to the finish. Once you understand what your tea is telling you, brewing becomes much easier.

Explore green teas with different flavour profiles, from clean and refreshing styles to naturally fruity combinations. For ArtTeas, the aim is always to make tea approachable while respecting the character of the leaf.

Frequently Asked Questions