Anaerobic pickling vs wet piling
The fermentation behind laphet and miang against the fermentation behind shou pu-erh. One excludes air so that lactic acid bacteria dominate; the other admits it so that a mixed aerobic population works through a heap. They are opposite designs and they produce opposite results.
processing method
What is being compared
Point by point
| Aspect | Anaerobic pickling | Wet piling (wo dui) |
|---|---|---|
| Oxygen | Excluded deliberately; the vessel is sealed. | Required; the pile is turned to admit it. |
| Dominant organisms | Lactic acid bacteria. | A mixed population of bacteria and fungi. |
| What happens to the leaf | It acidifies and softens, and it stays green rather than darkening. | It darkens and softens, losing its harsh young character. |
| Starting material | Steamed leaf, still soft and damp. | Finished dried maocha, re-dampened. |
| The product | A tea that is eaten — laphet in Myanmar, miang in northern Thailand. | A tea that is drunk. |
| Where it sits in the six-category model | Nowhere. The model has no place for it. | Dark tea. |
The short answer
Putting these two side by side is the clearest way to show that ‘fermented tea’ names a whole family of unrelated processes. The category system most readers are taught was built around drinkable Chinese tea, and an entire regional tradition of edible tea falls outside it without being marginal in the places that practise it.
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