Chapter II · The Implements · Section 2: A modern tea-science reading — reading “灶无用突者釜用唇口者”

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Thesis

Read through modern tea science, “灶无用突者釜用唇口者” is not a lab result but a set of variables: cultivar, soil, light and plucking standard.

Text

“The stove should have no chimney; the cauldron should have a lipped rim.”

Context

突：烟囱。唇口：宽边、便于密封的锅口。蒸茶要用不设烟囱的灶、有宽口的锅。

Evidence

• Collation: 本句极简，各本无显著异文。吴觉农校注时特别说明"突"即烟囱，"唇口"指宽边锅沿。
• Existing readings: 吴觉农释此句：蒸茶用无烟囱的闷灶，便于保温聚汽；宽口锅则便于放入蒸屉。可见唐代蒸青对"密闭聚热"已有朴素认知。

Analysis

Modern tea science would split “灶无用突者釜用唇口者” into cultivar, soil, light and plucking variables. 吴觉农释此句：蒸茶用无烟囱的闷灶，便于保温聚汽；宽口锅则便于放入蒸屉。可见唐代蒸青对"密闭聚热"已有朴素认知。 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 2; the original is in the public domain.

The vessel is not background. 突：烟囱。唇口：宽边、便于密封的锅口。蒸茶要用不设烟囱的灶、有宽口的锅。 The same leaf in a different bowl, grinder or sieve changes aroma and texture; vessel and tea are defined together.

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, 吴觉农释此句：蒸茶用无烟囱的闷灶，便于保温聚汽；宽口锅则便于放入蒸屉。可见唐代蒸青对"密闭聚热"已有朴素认知。. Tea was tribute, medicine and monastery drink at once, not a standalone commodity; the conclusion cannot be transferred without that context.