Camellia Sinensis Science

Tea Strength Converter

The Leaf Logic. Calculate your exact tea-to-water ratio for Western, Gongfu, or Grandpa style brewing.

Required Dried Leaves
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Oxidation & Temperature

Green Tea80°C (175°F)
Oolong Tea90°C (194°F)
Black Tea100°C (212°F)

Extraction Rule

Tea extracts differently than coffee. If left in water too long, catechins (tannins) will release, making the tea extremely astringent and dry.

The Art of the Infusion

Brewing tea is as much about chemistry as it is about tradition. The core of a great cup lies in the **Leaf-to-Water Ratio**. While many are accustomed to the standard "one bag per mug," loose-leaf tea offers a much wider spectrum of flavor that can only be unlocked with precise measurement.

Western vs. Gongfu Brewing

In **Western brewing**, we use a low leaf-to-water ratio (around 1:60). The leaves sit in a large volume of water for a longer period (3–5 minutes). This produces a large, consistent cup but loses the subtle aromatics of the leaf.

In contrast, **Gongfu Cha** (meaning 'skill tea') uses a high leaf-to-water ratio (around 1:15). You brew extremely small quantities—often just 100ml—for very short bursts (15–30 seconds) across multiple infusions. This reveals how the flavor of the tea evolves as the leaves expand.

Water Temperature: The Invisible Filter

Using boiling water on delicate Green or White tea can burn the leaves, releasing unwanted bitter tannins almost instantly. Conversely, using 80°C water on a fermented Black or Puerh tea might fail to extract the deep wood and leather notes. Every gram of leaf has a perfect temperature window.

Brewing Metrics Comparison Table

Tea Type Grams per 250ml Steep Time
Dragonwell (Green) 4.2g 2-3 mins
Assam (Black) 5.0g 3-5 mins
Darjeeling (Black/Oolong) 4.5g 3 mins
Puerh (Gongfu Style) 16.0g 15-30 secs

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Frequently Asked Questions

What is the standard ratio for brewing tea?

For standard Western brewing, a ratio of 1:50 to 1:60 is common (e.g., 2 grams of tea for every 100-120ml of water).

What is Gongfu brewing?

Gongfu brewing is a traditional Chinese method using a much higher leaf-to-water ratio (often 1:15 to 1:20) and very short, multiple infusions.

How much tea do I need for a 250ml mug?

For a standard cup, around 4-5 grams of loose-leaf tea is the balanced recommendation.