Why Does Green Tea Become Bitter?

If you have ever brewed green tea and tasted an overwhelming, mouth-puckering astringency, you were a victim of over-extraction. Green tea leaves are packed with delicate amino acids (which taste sweet and savory) and polyphenolic catechins/tannins (which taste bitter and brisk).

Amino acids dissolve quickly in warm water, while bitter tannins require high heat and prolonged immersion to extract. Brewing with boiling water or leaving the leaves in your cup for ten minutes causes heavy tannins to flood the brew, masking the delicate natural sweetness.

Step 1: Get the Water Temperature Right (75°C–80°C)

  • Target Temperature: 75°C to 80°C (167°F to 176°F).
  • No thermometer? Boil water completely, then either:
  1. Let the kettle sit with the lid off for 4 to 5 minutes before pouring.
  2. Pour the boiling water into a room-temperature ceramic pitcher first, then pour it over your tea leaves. Each vessel transfer drops the temperature by roughly 8°C to 10°C.

Step 2: Proper Leaf-to-Water Ratio

Use approximately 2 grams of whole loose-leaf green tea (about 1 rounded teaspoon) per 200 ml (7 oz) of fresh water. If you enjoy a richer flavor, increase the leaf amount slightly rather than extending the steep time.

Step 3: Keep the Clock: 2 to 3 Minutes

Set a timer!

  • First Infusion: 2 minutes to 2 minutes and 30 seconds.
  • Strain the leaves completely out of the liquor. Leaving leaves sitting in hot water at the bottom of the pot guarantees that your second cup will be excessively bitter.

Step 4: The Impact of Water Mineral Quality

Tea is 99% water. Highly chlorinated municipal tap water or excessively hard mineral water flattens tea aromatics and creates a dark, murky film. Use fresh, filtered water with balanced mineral content for a crystalline, glowing liquor.

Step 5: Resteeping the Same Leaves

High-grade Himalayan orthodox leaves like Himalayan Emerald are crafted to yield multiple flavorful cups:

  • Second Infusion: 80°C for 2 minutes (reveals deeper sweet-chestnut notes).
  • Third Infusion: 85°C for 3 minutes (gentle, calming finish).