Brew Academy: How Tea Is Made
HOW TEA IS MADE
From Leaf to Cup
Every cup of tea begins with a single plant:
Camellia sinensis
Whether you're drinking green tea, black tea, white tea, oolong tea, or pu-erh tea, the journey starts in a tea garden and continues through a carefully controlled process that transforms fresh leaves into the tea in your cup.
Understanding how tea is made helps explain why different teas look, smell, and taste so different—even though they all come from the same plant.
Step 1: Growing the Tea Plant
Tea thrives in regions with:
- Warm temperatures
- Frequent rainfall
- Rich soil
- Higher elevations
Many of the world’s most respected teas are grown in mountainous regions where cooler temperatures allow flavors to develop slowly.
Major tea-producing countries include:
- China
- Japan
- India
- Sri Lanka
- Taiwan
- Kenya
The climate, soil, and elevation of each region contribute to a tea’s unique character.
Step 2: Harvesting
Tea leaves are typically harvested by hand.
Tea pickers often select:
Two Leaves and a Bud
This standard harvest consists of the youngest and most flavorful leaves on the plant. Higher-quality teas are often made from the newest growth because these leaves contain the most desirable flavors and aromas.
Step 3: Withering
After harvest, fresh tea leaves contain a significant amount of moisture. The leaves are spread out and allowed to rest.
During this stage:
- Moisture begins to evaporate
- Leaves soften
- Aromas begin to develop
This process prepares the leaves for the next stages of production.
Step 4: Rolling
The leaves are gently rolled or shaped. This step:
- Breaks down cell walls
- Releases natural oils
- Begins flavor development
- Creates the tea’s final appearance
Different rolling techniques help create the distinctive shapes found in various tea styles.
Step 5: Oxidation
The Most Important Step
Oxidation is the natural reaction that occurs when tea leaves are exposed to oxygen. This process dramatically changes flavor, aroma, and color. The level of oxidation helps determine the type of tea produced:
| Tea Type | Oxidation Level |
|---|---|
| White Tea | Minimal |
| Green Tea | None |
| Oolong Tea | Partial |
| Black Tea | Full |
More oxidation generally creates darker leaves and richer flavors. Less oxidation preserves brighter, fresher characteristics.
Step 6: Drying
Once the desired oxidation level is reached, the leaves are dried. Drying:
- Stops oxidation
- Locks in flavor
- Reduces moisture
- Preserves freshness
At this stage, the tea becomes stable and ready for storage and packaging.
Step 7: Sorting & Packaging
The finished tea is sorted according to:
- Leaf size
- Appearance
- Quality
The tea is then packaged to protect it from:
- Moisture
- Light
- Oxygen
- Unwanted odors
Proper storage helps preserve flavor and aroma until brewing.
A Special Case: Matcha
Matcha follows a unique production process.
Before harvest:
- Tea plants are shaded for several weeks
- Chlorophyll levels increase
- Amino acids develop
After harvest:
- Leaves are steamed
- Veins and stems are removed
- The leaves are stone-ground into a fine powder
Unlike traditional teas, matcha is consumed as the entire leaf rather than an infusion.
Why Processing Matters
Every decision made after harvest influences the final cup. Processing determines:
- Flavor
- Aroma
- Color
- Body
- Sweetness
- Astringency
The difference between a fresh green tea and a bold black tea isn’t the plant—it’s the process.
Brew Academy Takeaway
Tea making is both an art and a science. From harvesting and withering to oxidation and drying, every step shapes the flavor of the final brew.
Understanding how tea is made helps you appreciate the craftsmanship behind every cup and discover why no two teas taste exactly alike.