CTC, answered directly
CTC stands for crush, tear, curl: a machine process that takes withered black tea leaf and drives it through rollers that cut, tear, and twist it into small, hard, remarkably uniform granules. The name describes the action and the product at once - pellets that look like coarse gunpowder and behave like an extraction machine. Because the cellular structure is thoroughly broken, CTC brews faster and stronger than whole leaf, gives a deep reddish cup that stands up to milk and sugar, and repeats the same performance batch after batch. It is not a style for slow sipping and re-steeping; it is engineering for throughput, which is why it dominates tea bags, hotel brew baskets, iced tea programs, and the bases behind most milk tea chains. The format has a history worth knowing when you negotiate: it was developed to mechanize and standardize black tea at industrial scale, and that original purpose - uniform strength, batch after batch - remains its whole value proposition today.
CTC versus orthodox, side by side
Orthodox processing keeps the leaf whole or in large strips, rolled gently so it keeps shape, appearance, and the ability to re-steep. CTC trades all of that for speed and strength. Neither is better; they answer different questions, and buyers who confuse them buy the wrong tool for their program.
| Aspect | CTC | Orthodox |
|---|---|---|
| Leaf form | Small hard granules, very uniform | Whole or broken strips, visible leaf |
| Extraction | Fast and near-complete in one brew | Slower, builds across infusions |
| Cup profile | Thick, reddish, strong, milk-friendly | Layered, aromatic, more nuanced |
| Re-steeping | One strong infusion by design | Two to three infusions are normal |
| Natural home | Tea bags, milk tea, chai-style, iced | Premium retail, afternoon service, tasting menus |
Where CTC earns its place
Milk tea is the clearest case: the base must punch through dairy and syrup, deliver the same strength in store after store, and do it in seconds of steeping, and CTC granules do all three. Iced programs like the same properties, because strong extraction survives dilution by ice. Tea bag converters like the flow properties and dose consistency of graded granules. Chai-style service, where the tea is simmered in milk and spice, wants exactly the no-holds-barred extraction CTC gives. Even hotels use it where volume and speed rule the morning shift. The desk's bubble tea base note walks through base selection for drink programs, and for most of them the answer starts with a CTC line and a locked blend. One more use worth listing for retailers: CTC blends are the working base for spiced chai programs, where the tea must carry cardamom, ginger, and simmered milk at once, and where a delicate orthodox leaf would vanish entirely.
Reading grades on a spec sheet
CTC comes in size grades - brokens, fannings, dust - which describe particle class rather than rank in the way leaf grades once did. Brokens go into decent loose-leaf-style packs and foodservice brews; fannings fill most tea bags; dust extracts hardest and fastest and lives at the value end. What matters more than the grade word is the physical consistency of the lot: particle size distribution, because a wide spread brews unevenly; liquor color with milk added, because that is how most of it will be drunk; and strength at a fixed brewing ratio. A supplier who cannot hold those three steady lot to lot is selling you a re-blending problem, whatever the grade name on the invoice says. Size also drives pack engineering: fannings flow evenly through bag-filling machines, which is part of why the grade dominates that format, while brokens give loose-leaf-style pouches a fuller look on the shelf.
Brewing parameters that hold
The working reference is two to three grams per 200 ml at a full boil for three to five minutes, or half that contact time under pressure equipment. Strength scales linearly with dose, which makes costing a cup straightforward: fix the dose, time, and water volume in writing, and the same granules produce the same cup in every location. With milk added, CTC keeps its structure where lighter blacks go thin; over iced, it holds color and body where delicate leaf turns cloudy and flat. Programs that need one strong base across hot and iced service usually standardize on a single CTC blend for both, tuned at the blend sheet stage rather than adjusted store by store. For iced programs the same blend usually wants a stronger dose rather than a longer steep, because extended hot contact pulls out an edge bitterness that dilution will not hide.
Sourcing and blending for consistency
The desk coordinates CTC from Yunnan production and, through compliant import channels, from Assam and Sri Lanka - Assam contributes malt and thickness, Ceylon contributes brightness and citrus edge - and blends to a reference profile held by a retained sample. Origin choice sets the malt-and-briskness balance; the blend sheet, not the origin label, is what keeps cups stable across seasons. Every batch is cupped dry and with milk against the reference before release, with retention samples kept so a complaint months later can be answered with evidence. How that discipline survives harvest changes is covered in the desk's note on keeping a blend consistent, and the two origins are compared side by side in the desk's origin notes.
Checks before a bulk order
- Brew the sample twice: once at your recipe and once at the supplier's reference, and compare strength, color, and milk behavior.
- Check particle uniformity by hand and sieve - spread in size means spread in cup strength.
- Fix dose, water, time, and temperature as numbers, and hold both sides to them on every future lot.
- Ask for moisture, bulk density, and a lab panel per lot; these travel with the invoice, not the marketing sheet.
- Agree a retention sample protocol so every delivery can be verified against the blend you approved.
Order sizes for a CTC program start lower than most buyers expect - loose refined tea typically begins around the fifty-to-one-hundred-kilogram mark per style, with private label packing at higher volumes - all reference ranges confirmed in writing per program. Start from the CTC line and the black tea hub, and send the quote form your recipe and volumes for a written sample plan.