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‘Dark green dust’: the best (and worst) supermarket green teabags, tested and rated

By · Via The Guardian Money · Published by Everything Blog

In short

Commercial green teabags often produce sharp, highly astringent flavors because their finely broken leaves over-infuse rapidly. Brewing with 80C water for approximately 90 seconds drastically improves the profile, highlighting notes of toasted straw, edamame, and kelp. While several mainstream brands scored poorly due to excess brown stems, top performers demonstrated that supermarket options can still deliver authentic umami depth.

Key points

  • Achieving a water temperature of 80C requires blending one-quarter cold water with three-…: Achieving a water temperature of 80C requires blending one-quarter cold water with three-quarters just-boiled water.
  • Over-brewing finely broken tea dust increases bitterness due to the leaves having a highe…: Over-brewing finely broken tea dust increases bitterness due to the leaves having a higher surface area.
  • Lower-tier supermarket brands suffered from sharp, tannic finishes caused by lower-grade…: Lower-tier supermarket brands suffered from sharp, tannic finishes caused by lower-grade leaf fannings and brown stems.

Sources checked by our analysis pipeline: 1

My mother-in-law has a mug that reads: “By replacing your morning coffee with green tea, you can lose up to 87% of what little joy you still have left in your life.” Some people will never like green tea, while others will probably have tried only poor-quality, over-brewed bags filled with the dust and fannings left over from the production of whole leaf tea. Only one of today’s teas contains whole leaves, and the difference is hugely noticeable, though that’s not to say the more economical bags are undrinkable. Some are single-origin or organic, and are certainly satisfactory, so long as you brew them properly.

Due to the large surface area of these tiny broken leaves, you need to be careful not to over-brew them. To stand the best chance of making a half-decent cup, use water at 80C – you can achieve that temperature by quarter-filling a cup with cold water, topping it up with just-boiled water and leaving it to brew for about 90 seconds. You’ll end up with a much sweeter cup, with nuanced kelp, edamame and…

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