How an auction actually works
A description of something people do now, compiled from published accounts rather than from practice.
A producer’s made tea is delivered to a warehouse and split into lots by invoice. A licensed broker draws samples, tastes and grades them, publishes a catalogue with a valuation against each lot, and circulates samples to buyers in advance so they can taste before bidding. On sale day the lots are called in catalogue order and bought by blenders, packers and exporters. Nothing about this is about origin storytelling: the buyers are matching leaf to a blend specification and a price, and the tasting is a quality-control operation rather than an appreciation. Timing is part of the mechanism. Auctions run weekly or on a fixed cycle, catalogues close on a set day, and a producer’s cash flow depends on getting made tea into the right sale. Tea that fails to sell is withdrawn and re-offered, usually at a lower valuation, and unsold percentages are watched as an indicator of the market. The whole system runs on a rhythm that a garden’s production has to be organised around, which is one of the ways a sales mechanism reaches back into agriculture.
London, and Mincing Lane
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The auction began as an English East India Company practice — public sales of imported tea in London, conducted under the old “by the candle” convention in which bidding ran until an inch of candle burned out. Mincing Lane became the trade’s address and remained the centre of world tea pricing for well over a century. The London auction finally closed at the end of the 1990s — 1998 is the date conventionally given — long after the pricing power had moved to the producing countries. Its closure is a good marker for the end of a particular commercial order rather than a change in how tea is sold. The vocabulary that came out of that period is still in use worldwide and is worth recognising as an artefact rather than a natural taxonomy. The leaf-grade abbreviations, the broker’s valuation, the practice of circulating samples in advance, the tasting-room set-up with its rows of pots and the spittoon — all of it was standardised in London for London buyers, and all of it was exported wholesale to producing countries along with the auction itself.
The auctions that matter now
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Colombo, Kolkata, Guwahati, Cochin, Coimbatore, Chittagong, Jakarta, Limbe — and above all Mombasa, which handles tea from Kenya and from much of the rest of eastern and southern Africa and is generally described as the largest tea auction in the world. Calcutta and Colombo both date from the second half of the nineteenth century and predate the independence of the countries they sit in, which tells you they were built to serve the same buyers as London. Most have moved to electronic bidding, which changed the room and not the structure. Electronic bidding changed one thing that matters: it removed the physical room in which a small number of buyers could see each other, which was an obvious venue for coordination and had long been suspected of being one. Whether it changed outcomes is debated. What it did not change is the underlying structure — a large number of sellers offering a perishable commodity into a market with a small number of large buyers, on a fixed weekly cycle.
What the system does to information
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The auction is efficient at moving volume and pricing quality, and it is designed to strip a lot of its identity. Tea is graded, catalogued, bought by a blender and combined with dozens of other lots to hit a house profile. By the time it reaches a supermarket shelf, the garden, the country and often the continent are gone from the packet. That is not a failure — blend consistency is precisely what the mass market wants — but it does explain why single-origin, garden-named, harvest-dated tea reads as a speciality product. It is the information the auction system was built to discard. There is one further consequence for a reader of this catalogue. Because the auction discards origin, the entities that a speciality-oriented catalogue is built around — the garden, the flush, the cultivar — simply do not exist as data for the overwhelming majority of the world’s tea. That is not a gap in TeaHQ’s coverage that better research would close. It is an absence in the trade itself, and any catalogue that appears to cover all tea at garden level is describing the small part where such records are kept.
And what it does to producers
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
A smallholder or estate selling into an auction is a price-taker in a commodity market, with returns set by grade, season and demand from a small number of large buyers. Direct sales, private treaty and speciality channels bypass it and are a small share of volume. Persistent low auction prices for CTC grades have been a recurrent and widely reported source of distress in producing regions. TeaHQ states the structure and does not quantify it, because the figures move with the season and none has been verified here. Smallholders sit at the far end of this: they sell green leaf to a factory by weight, the factory sells made tea at auction, and the price reaching the farmer is what remains after processing and marketing costs several steps upstream of anything they control. Interventions — reserve prices, minimum leaf rates, cooperative factory ownership — exist in several producing countries and have had mixed and contested results. TeaHQ names the interventions without assessing them, which would require evidence it does not have.