Basket ageing
Ageing dark tea packed into woven bamboo baskets, which contribute aroma and regulate airflow.
The categories this step defines
In tea, processing is not a modifier applied to a category — it is what creates the category. These are the types that exist because this step exists.
- Dark tea and pu-erh — Post-fermentation: microbial wet-piling (shou) or extended natural ageing (sheng).
What it is
The traditional storage format for Liu Bao and for several Anhua dark teas, and a functional choice rather than a packaging one. Bamboo breathes, which keeps the tea’s microbial activity going at a rate sealed containers do not permit, and it contributes its own aroma to the tea over years. The characteristic betel-nut note associated with aged Liu Bao is generally attributed to this combination of slow airflow and basket contact.
Also transliterated as: lou cang.
What it does to the leaf
Holds compressed or loose dark tea in a breathable container that permits slow gas exchange while imparting bamboo aroma.
What it does to the cup
Develops the woody, faintly medicinal and betel-nut character associated with traditionally stored Liu Bao.
Variants that matter
Ways this step is carried out that produce genuinely different results, rather than regional names for the same thing.
- Bamboo-leaf lining
- Baskets are often lined with bamboo leaf, which increases the contribution and is part of the traditional specification.
Other steps at the Ageing and storage stage
- Ageing and storage — Deliberate long-term storage under which a finished tea keeps changing, rather than merely keeping.
- Holding maocha before pressing — Sun-dried maocha is frequently kept loose for months or years before anyone presses it, which means a cake's date is the date of its pressing and not of its leaf.
- Warehouse storage and airing (ru cang, tui cang) — The deliberate two-phase Hong Kong practice of holding cakes in a humid warehouse and then airing them in a dry one for years before sale.
Teas that go through this step
Sources
- TeaHQ editorial synthesis — TeaHQ
This page is TeaHQ’s own synthesis of well-attested production practice. No external technical document stands behind it, so it describes what producers do rather than asserting measured process parameters.
Written comparisons
Where TeaHQ has set this step against something it is routinely confused with, and argued the differences out in full.
- Basket ageing vs general storage — Ageing is what happens to a dark tea over years; basket ageing is a specific container decision inside it, and the container turns out to contribute flavour rather than merely holding the tea. The betel-nut note associated with aged Liu Bao is generally attributed to the basket.