The condition language collectors actually use

The small ticket pressed into the cake face during production, recording factory and recipe.

Because it sits in direct contact with the leaf, its ink bleed, position, and depth often record storage history more precisely than the outer wrapper — a pristine, sharp-printed nèi fēi on a claimed-old cake usually means a dry, low-humidity life.

A separate paper slip tucked loose inside the wrapper, alongside the nèi fēi rather than pressed into the cake.

Sellers are asked for photographs of both together — a nèi piào present or absent, and consistent with the claimed factory and year, is one line in a coherent description.

Rust-brown speckling on wrapper paper, caused by iron oxidation in damp paper.

Location and pattern matter more than presence: a uniform, golden-brown patina reads as stable moderate humidity, while erratic mottling with darker spots signals intermittent wetting.

A darker brown ring on the wrapper where moisture migrated and then stopped.

One clean tide line tells you the cake was once humid and then dried out — information. Three overlapping tide lines tells you the storage was unstable — a warning.

Small punctures from paper-eating beetles, common in Guangdong storage.

Not a defect by themselves — a cake with none can be more suspicious than one with a dozen. What matters is whether the holes go through to the leaf.

Dry storage — low-humidity conditions that age a cake slowly.

Typical of Kunming’s roughly 1,200m plateau air: the leaf stays sharp-edged longer, the surface holds a green-brown colour with visible silver tips even after twenty years.

Wet storage — the classical humid-warehouse style associated with Hong Kong and Guangzhou.

Ages a cake faster and darker: the nèi fēi bleeds ink sooner, the wrapper develops foxing and tide lines, and the compression face can slump under the stacked weight.

A dated, named chain of custody across climates — for example: pressed Menghai 1999, stored Kunming dry 1999–2008, transferred Guangzhou humid 2008–2019.

The single most expensive line in any description. A confused trail — ‘aged storage, good condition’ — is a hope, not a provenance.

A cake’s edges drooping and its centre flattening after years under a stacked, humid pile.

A rim slumped into something close to a shallow bowl usually means at least two decades in a consistently humid stack. A crisp, high edge points the other way.

Leaf tips standing up at a cake’s edge, like the petals of a closed flower.

Typical of looser, stone-pressed Menghai cakes from the late 1990s, where interleaf gaps allow slow oxygen exchange during ageing.

The settled, woody, faintly sweet baseline expected in anything aged fifteen years or more.

Develops after a long, stable humid ageing phase; points toward deep bark-and-ginseng notes in the cup.

Desirable and comparatively rare — one of the markers worth a phone call rather than a shrug.

Associated specifically with old Yiwu and Yibang material aged in Hong Kong tradition.

Tends to peak between twenty-five and forty years of storage — a rough dating tool as much as a flavour note.

A musty, sharp, slightly sour note — the warning sign among the aroma terms.

A small trace airs off within months of moving out of humid storage. A heavy trace after a decade of stated dry storage means the material underneath is compromised.

The accelerated fermentation process behind shóu (ripe) pǔ’ěr, distinct from the slow natural ageing of shēng (raw) pǔ’ěr.

Stone pressing leaves looser, slightly uneven compression with visible interleaf gaps; hydraulic pressing is tighter, more even, and slower to age.

Counterfeiters lean on hydraulic presses because uniform density is easier to reproduce than the irregular, slightly undulating surface of a genuine stone press.

The standard flat, round shape a pu’er is pressed into, most commonly at 357 grams.

The traditional bundle — usually seven cakes — wrapped together in bamboo leaf for transport and storage.

A cake’s position inside a tǒng, and whether it was later split and sold alone, is part of what a full storage trail should account for.

One of the documentary anchors of a provenance bundle, alongside factory tickets, warehouse slips, and transfer-of-custody notes.

The distinction between a story about a cake and a story that can be checked.

A narrative that cannot be pinned to a specific place, warehouse, or named person — ‘aged in a Guangdong warehouse’ with no city, no facility, no custodian — is decoration, not provenance, however good the price looks.