Chapter II · The Implements · Section 5: A modern tea-science reading — reading “规一曰模一曰棬以铁制之或圆或方或花”

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Thesis

Read through modern tea science, “规一曰模一曰棬以铁制之或圆或方或花” is not a lab result but a set of variables: cultivar, soil, light and plucking standard.

Text

“The gui mold, also called mo or quan, is made of iron, in round, square, or floral shapes.”

Context

规：压饼的模具，又叫模、棬（quān）。以铁制成，有圆形、方形、花形。

Evidence

• Collation: 各本一致。吴觉农注：唐代饼茶以"规"定型，圆者为"月团"，方者为"小方"，为后世团茶（龙凤团茶）之先声。
• Existing readings: 吴觉农指出"规"即压茶模具：唐饼、宋团、明清砖沱，皆由此演化；"或圆或方或花"说明唐代饼茶形态已多样，不只是圆饼一种。

Analysis

Modern tea science would split “规一曰模一曰棬以铁制之或圆或方或花” into cultivar, soil, light and plucking variables. 吴觉农指出"规"即压茶模具：唐饼、宋团、明清砖沱，皆由此演化；"或圆或方或花"说明唐代饼茶形态已多样，不只是圆饼一种。 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 5; the original is in the public domain.

Storage adds another variable: moisture and temperature. 各本一致。吴觉农注：唐代饼茶以"规"定型，圆者为"月团"，方者为"小方"，为后世团茶（龙凤团茶）之先声。 Old and young tea do not share one shelf life, so “the older the better” is not a rule.

As a new reader, I first took “规一曰模一曰棬以铁制之或圆或方或花” as a conclusion. Reading the annotation to section 5 again, it is clearly a judgment with conditions attached.

Textually, 各本一致。吴觉农注：唐代饼茶以"规"定型，圆者为"月团"，方者为"小方"，为后世团茶（龙凤团茶）之先声。. The point is that “the original” is not a single stable text; name the edition before making a strong claim.