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Ingredients

Ingredients

Tea

The only beverage where six different products — white, green, oolong, black, pu-erh, matcha — all come from one plant, priced through auctions instead of a futures exchange.

The Plant a British Botanist Stole Twice — and a Trade Deficit That Started a War

Every kind of tea — white, green, oolong, black, pu-erh — comes from the same plant, Camellia sinensis, native to the Yunnan-Guizhou plateau. China held a near-total monopoly on it for centuries, protected in part by geography and in part by knowledge: growing and processing tea into a finished product was a closely held craft. That monopoly broke twice, both times because of British colonial ambition. In 1848, the East India Company sent Scottish botanist Robert Fortune into China’s tea-growing interior — forbidden to foreigners — disguised, to steal both live plants and the manufacturing know-how, smuggling seedlings out in sealed glass cases. By the 1850s, British-controlled Assam and Darjeeling were producing tea, ending China’s centuries-long grip on the crop. A second, unrelated colonial mechanism created Ceylon’s tea industry: when coffee-leaf-rust blight devastated Ceylon’s coffee plantations in the 1870s, planters who had already begun growing Assam-variety tea pivoted en masse, and Ceylon’s first tea shipment reached London in 1873.

Tea’s economic weight reshaped Britain’s relationship with China long before either theft. By the late 1700s tea was more than 60% of the East India Company’s total trade with China, and tea taxation alone accounted for roughly a tenth of the British Crown’s revenue — but China would only accept silver in payment, having no comparable appetite for British goods. As Britain’s trade deficit with China widened through the 1780s–90s, the East India Company and private merchants began smuggling Indian-grown opium into China to reverse the silver drain; by 1839, opium sales to China were covering the entire cost of Britain’s tea habit. Chinese attempts to suppress the trade precipitated the First Opium War (1839–42), which China lost, ceding Hong Kong and forcing open trade concessions — a beverage preference that literally rearranged the flow of a global monetary metal and then triggered a war.

In the Professional Kitchen

The single most important fact for costing and menu work: white, green, oolong, black, and pu-erh tea are not different plants — they’re the same leaf carried to different points of oxidation. White tea is barely processed, sun-dried with near-zero oxidation. Green tea is heat-treated immediately after picking specifically to stop oxidation. Oolong is semi-oxidized, monitored and halted partway. Black tea is fully oxidized. Pu-erh is different again — it undergoes post-oxidation microbial fermentation and aging, closer to a cheese-aging process than a simple color spectrum. CTC (crush-tear-curl) processing, which machine-produces the small hard pellets used in most tea bags, dominates global volume — commonly cited at roughly 95% of the market by weight — while orthodox, whole-leaf processing preserves leaf integrity through a slower, multi-stage sequence and commands a loose-leaf, higher-margin, more flavor-differentiated tier.

Varieties & Forms

Matcha sits apart from the rest of the category structurally, not just stylistically: it’s shade-grown, hand-picked, then stone-ground — a traditional mill produces only around 30 grams per hour, meaning 100 grams of premium stone-ground matcha represents several hours of grinding labor alone, on top of shading and hand-picking. Because the whole powdered leaf is consumed rather than steeped and discarded, matcha is priced as a specialty ingredient, not a beverage commodity, and that labor floor means it can’t be cost-engineered down the way bagged tea can. Yield-per-cup differs sharply by form more broadly: CTC dust extracts fast and strong at a lower leaf-weight per cup, while orthodox whole-leaf needs more leaf by weight and a longer steep for the same strength. “Orange pekoe” is worth flagging on any spec sheet — it’s a leaf-size and wholeness grade for black tea, not a flavor and not a reference to orange fruit, and grade alone doesn’t indicate quality or taste.

Why It Matters for Your Food Cost

Tea’s price-discovery mechanism is genuinely different from coffee and cocoa. Unlike coffee, which has traded on futures exchanges since 1882, and cocoa, since 1925, tea has no major global futures exchange — its supply is comparatively predictable, the crop is extremely heterogeneous across thousands of cultivars and grades, and volatility is reportedly too low to attract the speculative liquidity a futures market needs. Instead, physical auctions handle most traded tea. Colombo (Sri Lanka) is the largest overall auction center; Mombasa (Kenya) is the world’s largest single auction specifically for CTC black tea, processing tea from ten African countries weekly and setting the East African regional benchmark; India historically ran auctions through Kolkata and Guwahati. The practical takeaway for a kitchen or buyer: tea input-cost risk isn’t hedged on an exchange the way coffee is — it’s set week-to-week by competitive bidding at a handful of regional auction centers, plus direct and forward contracts outside the auction system.

Climate change is already a live, current supply pressure rather than a future risk: Darjeeling’s tea output fell from roughly 12 million kg to roughly 6 million kg over about a decade to 2024, attributed partly to rising temperatures shifting the prized first-flush harvest earlier into the season — a concrete data point for anyone specifying Darjeeling by name on a menu. Tea isn’t a regulated allergen, but flavored and blended teas manufactured on shared lines can carry cross-contact risk worth noting on allergen matrices.

How CalcMenu Helps

  • Recipe and beverage costing tracks CTC, orthodox, and matcha as separately priced line items, since yield-per-cup and cost-per-serving genuinely differ by form, not just by brand.
  • Substitution costing models a bagged-CTC-to-loose-leaf-orthodox swap side by side on cost-per-cup and steep-time labor before a service-format change goes live.
  • Multi-site price consistency flags when one location is quoted a materially different rate for the same tea grade — useful since tea pricing moves through regional auctions rather than one global benchmark.
  • Menu specs carry the leaf-grade distinction, so guest-facing copy doesn’t misdescribe a size grade like orange pekoe as a flavor.

Sources

Ingredients

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Rice

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Pasta

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Bread

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Cheese

The one commodity with no single global price — a block of mozzarella and a wheel of Parmigiano-Reggiano are priced by two completely different mechanisms.

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