Bitter or Clumpy Matcha? Causes & Fixes ｜ MatchaJP

Bitter or Clumpy Matcha? Causes & Fixes ｜ MatchaJP

If your matcha tastes bitter or forms stubborn clumps, a few small tweaks can transform your cup. Here’s how.

 

TL;DR: Keep water at 70–80 °C / 158–176 °F, sift the powder, make a pre-slurry with a little water, and whisk fast in an M/Z motion. Store airtight and use fresh, fine matcha.

Why Matcha Tastes Bitter

  • Water too hot: Above 80 °C pulls harsh bitterness.
  • Too much powder: Start with 2 g (~2 tsp) per serving.
  • Under-whisking: Slow circles won’t aerate; foam softens sharpness.
  • Old or oxidized matcha: Dull color, stale aroma → more bitterness.
  • Hard or chlorinated water: Minerals and chlorine can make flavors harsh.
  • Grade mismatch: Some culinary blends are intentionally bold for mixing.

Why Matcha Gets Clumpy

  • Static & humidity: Super-fine powder sticks together.
  • No sifting: Tiny lumps resist dissolving if added directly.
  • Coarse grind/impurities: Lower quality can clump more.
  • Oily or wet tools: Residue or moisture catches powder.

Quick Fixes (Step-by-Step)

  1. Sift first: 2 g through a fine mesh for 10 seconds.
  2. Pre-slurry: Add 2–3 tbsp (30–45 ml) hot water at 70–80 °C; whisk to a smooth paste.
  3. Whisk fast: Add more water (or milk) and whisk in a vigorous M/Z motion for 10–15 seconds until fine foam appears.
  4. Adjust ratio: For straight matcha: 2 g + 60–90 ml water. For latte: finish with 180–220 ml milk.
  5. Water choice: Use filtered/soft water if possible.

Storage Tips

  • Keep airtight, cool, dark. Avoid humidity.
  • After opening, enjoy within 4–8 weeks.
  • Close quickly; consider smaller tins for bulk buys.

Tool Checklist

  • Fine mesh sifter
  • Chasen (bamboo whisk) or micro-frother
  • Dry bowl/cup—no oil or water residue

FAQ

Can I fix bitterness with milk?

Milk and a touch of sweetener can help, but temperature, freshness, and whisking are the biggest wins.

Which grade is best?

Ceremonial for drinking straight or premium lattes (smoother). Culinary for bold flavor in bakes and everyday lattes.How-toTroubleshooting


General brewing guidance only; taste is personal—adjust ratios to your preference.

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