Guides

Why Does My Tea Taste Bitter?

Bitterness in tea comes from two compounds: caffeine (bitter) and catechins/tannins (astringent — that dry, mouth-puckering feel). Both extract faster with hotter water, more time, and more leaf. That is good news: every cause is under your control. Find your symptom below.

Harsh, sharp bitterness that coats your tongue
CauseWater too hot for the teaFixDrop 5–10°C. Japanese green teas want 60–80°C, Chinese greens 75–85°C, delicate whites 80–85°C. Only black and dark teas tolerate a full boil.

Example parameters: Sencha brews at 70–80°C for 1–2 min.

Bitter only in later cups
CauseSteeped too long, especially on resteepsFixShorten each steep; add 10–15 seconds per infusion, not a minute. Green teas rarely need more than 2 minutes.

Example parameters: Longjing brews at 80–85°C for 2–3 min.

Bitter and strong everywhere
CauseToo much leaf for the waterFixWeigh your leaf. Most teas in this guide use 2–3 g per 150–250 ml. If you eyeball a heaped teaspoon of broken-leaf tea, you are often using double.

Example parameters: Earl Grey brews at 95–100°C for 3–5 min.

Bitter when iced or left to cool
CauseLong hot steep over-extracting, then chillingFixFor iced tea, either brew hot and dilute over ice immediately, or cold brew 6–12 hours in the fridge — cold water extracts far less bitterness.

Example parameters: Hojicha brews at 80–90°C for 1–2 min.

Fine powder or grit in the cup, sudden bitterness
CauseBroken leaf, dust, or fannings (common in tea bags)FixBroken leaf extracts in seconds. Use whole-leaf tea, or steep bagged tea for under a minute and remove.

Example parameters: Sencha brews at 70–80°C for 1–2 min.

Bitter despite careful brewing
CauseHard water (high mineral content)FixTry filtered or bottled low-mineral water. Hard water flattens aroma and exaggerates harshness.

Example parameters: Tie Guan Yin brews at 90–95°C for 1–2 min.

The 30-second bitter-tea checklist

  1. Check water temperature against the tea page's range.
  2. Set a timer — guessing is how 2 minutes becomes 5.
  3. Weigh or measure the leaf.
  4. Remove leaves fully when the steep ends (no leaving them in the pot).
  5. If it is still bitter, try filtered water.

Related: green tea steep times, cold brew (nearly bitterness-free), brewing temperature chart.