How to Process Tea Leaves into Green Tea
How to Process Tea Leaves into Green Tea
Authors: Jessica Weaver and Carol Miles
Affiliation: Washington State University Northwestern Washington Research and Extension Center
September 2026
Introduction
Green tea can be processed using this simple method. Our temperature and time suggestions work best for 50 g of fresh tea leaves.
Supplies
- fresh tea leaves
- paper bag
- large metal pot
- metal colander
- kettle
Steps
- Handpick the top 3–5 leaves.

- Set oven to warm and hold or low (approx. 175 °F).

- Fill a large metal pot with 4–5 inches of water.

- place fresh tea leaves into colander and place the colander into the pot above the water level.


- Steam tea leaves for 5 minutes.
- Remove colander with tea leaves from pot.

- Place steamed leaves in paper bag.

- Place paper bag into preheated oven.
- Dry the leaves in the oven for 5–6 hours, occasionally shaking or tossing the leaves to prevent clumping and promote even drying.
- Once all leaves are dried, no longer wet and floppy, remove from oven.

- Brew into tea by steeping dried leaves in 160–180 °F water for between 3–5 minutes depending on desired taste and bitterness. For a more intense flavor, crush the leaves before steeping.


The information in this publication is based upon work that is supported by the U.S. Department of Agriculture, National Institute of Food and Agriculture, under award number 2024-38640-42985 through the Western Sustainable Agriculture Research and Education Program under project number WPDP25-003, and Hatch Project WNP0010 Accession 7005372. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and should not be construed to represent any official USDA or U.S. Government determination or policy, and are not meant to endorse any businesses or detract from any not listed.
