Fix Your Cup: Brewing Troubleshooting

Too Bitter or Astringent

Bitterness is the most common complaint, and it's almost always caused by over-extraction. The tannins in tea dissolve fastest in hot water and with long steeping times. This affects green and white teas the most, since their delicate compounds are easily overwhelmed.

• Lower the water temperature by 5–10°C - this alone fixes most bitterness issues
• Reduce steep time by 30 seconds to 1 minute
• Use less leaf: the standard ratio is about 2–3g per 200ml for Western brewing
• For green teas, never use boiling water - 70–80°C is the sweet spot
• If using a small gaiwan (gongfu style), pour out faster - even 5 extra seconds matters

Too Weak or Watery

A thin, flavorless cup usually means under-extraction. The leaf hasn't had enough contact time, heat, or density to release its compounds fully. This is especially common with rolled oolongs and tightly compressed pu-erhs, which need more time to unfurl.

• Increase the leaf-to-water ratio - try 4–5g per 200ml
• Steep longer, adding 30 seconds at a time until the flavor develops
• Make sure water is hot enough: black teas and pu-erhs need a full rolling boil (95–100°C)
• Give rolled oolongs a quick 'rinse' steep of 5–10 seconds to help the leaves open before the first real infusion
• Use a smaller vessel - a 100–150ml gaiwan concentrates flavor naturally

Sour or Off-Tasting

Sourness in tea is less common but can indicate stale or improperly stored leaves, under-heated water (especially with pu-erh or dark teas), or water quality issues. Chlorinated tap water and heavily mineralized water can both produce off-flavors.

• Use filtered or spring water - distilled water tastes flat, while hard water produces chalky notes
• Check your leaf freshness: green teas lose vibrancy after 6–12 months
• For pu-erh, always use boiling water and consider discarding the first rinse
• If your tea smells musty, it may have absorbed moisture or odors during storage - this isn't fixable

Inconsistent Results

If your tea tastes different every time, the variables aren't controlled. Professional tasters use precise measurements and timing for a reason - small changes compound. A kitchen scale, a thermometer (or temperature-controlled kettle), and a timer are the three tools that make the biggest difference.

• Weigh your leaf instead of eyeballing - volume varies dramatically between tea types
• Use a temperature-controlled kettle if possible; it removes the guesswork
• Pre-warm your teapot or gaiwan with hot water before adding leaves - a cold vessel drops water temperature significantly
• Note your parameters each session until you find your preferred settings, then replicate them

Gongfu vs. Western: When to Switch

Some teas simply perform better in one style or the other. Dense, complex teas with evolving flavor profiles - like Wuyi rock oolongs, aged pu-erhs, and high-mountain Taiwanese oolongs - reward the concentrated, multi-infusion gongfu approach. Lighter, more uniform teas like Japanese greens, most black teas, and flavored blends work well with Western parameters.

• If a tea tastes 'too intense' with gongfu ratios, switch to Western-style with less leaf and more water
• If a tea tastes flat with Western brewing, try gongfu: more leaf, less water, shorter steeps
• Many oolongs and pu-erhs yield 6–10+ infusions with gongfu method, making them more economical than they first appear

Related Teas

• Sencha

  Green Tea

• Assam

  Black Tea

• Silver Needle

  White Tea

• Tieguanyin

  Oolong Tea