Chapter II · The Implements · Section 3: A modern tea-science reading — reading “甑或木或瓦匪腰而泥篮以箅之篾以系之始其蒸也入”

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Thesis

Read through modern tea science, “甑或木或瓦匪腰而泥篮以箅之篾以系之始其蒸也入” is not a lab result but a set of variables: cultivar, soil, light and plucking standard.

Text

“The zeng steamer is made of wood or earthenware, narrowed at the waist and sealed with clay. A bamboo tray serves as the grate, tied with bamboo strips. When steaming begins, the leaves enter the grate; when done, they are taken out.”

Context

甑（zèng）：蒸器，古蒸茶用。匪腰而泥：腰部收束并用泥封。箅（bì）：蒸屉。

Evidence

• Collation: “匪腰而泥"之"匪”，有学者校读为"非"（即"腰部收束"），百川学海本作"匪"，属通假用字；四库本同。
• Existing readings: 吴觉农指出：甑为唐代蒸青核心工具，今日本蒸青玉露所用甑器仍存古制；"匪腰而泥"的收腰泥封设计，是为了让蒸汽在甑内回流不散，是古代"以器定味"的巧思。

Analysis

Modern tea science would split “甑或木或瓦匪腰而泥篮以箅之篾以系之始其蒸也入” into cultivar, soil, light and plucking variables. 吴觉农指出：甑为唐代蒸青核心工具，今日本蒸青玉露所用甑器仍存古制；"匪腰而泥"的收腰泥封设计，是为了让蒸汽在甑内回流不散，是古代"以器定味"的巧思。 They remain testable, but only with their conditions attached.

Conclusion

The section does not give a universal rule. It demonstrates a method: read the text, the annotation and the Tang context together before making a modern claim.

Source: The Classic of Tea, Chapter II · The Implements, section 3; the original is in the public domain.

Water and fire magnify the difference. The same leaf at a higher temperature or a longer steep changes the sweet-bitter balance; the text only becomes operational at the brewing stage.

In Tang context, 吴觉农指出：甑为唐代蒸青核心工具，今日本蒸青玉露所用甑器仍存古制；"匪腰而泥"的收腰泥封设计，是为了让蒸汽在甑内回流不散，是古代"以器定味"的巧思。. Tea was tribute, medicine and monastery drink at once, not a standalone commodity; the conclusion cannot be transferred without that context.

Storage adds another variable: moisture and temperature. “匪腰而泥"之"匪”，有学者校读为"非"（即"腰部收束"），百川学海本作"匪"，属通假用字；四库本同。 Old and young tea do not share one shelf life, so “the older the better” is not a rule.