TeaFYI

Withering Stages

Processing

Definition

The controlled process of moisture loss in freshly plucked tea leaves, divided into outdoor withering (sun or shade) and indoor withering (on racks or troughs). Withering reduces leaf moisture from 75-80% to 60-70%, making leaves pliable and initiating chemical changes.

Details

Withering is the first processing step for most tea types and arguably the most important for flavor development. Fresh tea leaves contain 75-80% water; withering reduces this to 60-70%, concentrating flavor compounds and making the leaves pliable enough for rolling without breaking. The process unfolds in stages: outdoor withering (spreading leaves in sun or shade for 1-4 hours) initiates cell wall breakdown and volatile compound development; indoor withering (spreading on bamboo trays, wire racks, or mechanical troughs for 8-24 hours) continues moisture loss at a controlled rate. During withering, complex biochemical transformations occur: proteins break down into amino acids, starches convert to sugars, and grassy fresh-leaf aromas evolve into floral and fruity compounds. The wither master controls duration and intensity based on leaf type, weather, and desired outcome — light wither for green tea (brief, preserving freshness), medium wither for oolong (developing floral character), heavy wither for white tea and some black teas (maximizing sweetness and aroma). Under-withered leaves produce grassy, harsh tea; over-withered leaves produce flat, lifeless tea. Temperature, humidity, and air circulation all affect the rate and quality of withering.

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