vanilla · caramel · chocolate
Dipteryx odorata
botanical name
Amazonian legume, not a true bean
Venezuela
top producer
Bolívar state, Orinoco basin forests
Coumarin
primary compound
also found in sweet clover and hay
3g
per pod
one bean flavours 500 ml of cream
Dipteryx odorata is a species of flowering tree in the pea family, Fabaceae. The tree is native to Northern South America and is semi-deciduous. Its seeds are known as tonka beans, but sometimes spelled tonkin beans or tonquin beans. The seeds are black and wrinkled and have a smooth, brown interior. They have a strong fragrance similar to sweet woodruff due to their high content of coumarin.
Tonka beans — Dipteryx odorata — are the wrinkled black seeds of a giant leguminous tree that grows wild in the rainforests of the Guiana Shield, Venezuela, Colombia and Brazil. After curing, the kernel develops a high concentration of coumarin, yielding a complex aroma that is part vanilla, part cherry pit, part cut hay and part almond. In French three-star kitchens tonka is micro-grated over crème brûlée, chocolate ganache, foie gras, or infused into cream and milk; a single bean perfumes up to thirty servings. Coumarin is restricted in some countries — used in the traditional micro-doses, tonka is widely considered safe and is legal in the EU.
Tasting notes
vanilla · caramel · chocolate
Intensely aromatic: vanilla and bitter almond up front, cured tobacco and fresh-cut hay in the middle, sour cherry and clove on the finish. Coumarin content of 1 to 3 percent delivers the haunting tonka signature; shave sparingly over cream, stone fruit, game, or dark chocolate.
Flavor compass
The benchmark wild-harvested tonka from Dipteryx odorata trees of Amazonas state — Yekuana and Yanomami territories. Thick wrinkled pod, very high coumarin (up to 3%), deep tobacco-vanilla-almond nose. The grade French perfumery and chocolatiers chase.
The Pará and Amapá grade — slightly smaller, glossier bean, often harvested from managed agroforestry plots. Rounder, more chocolate-plum aromatics, a little lower on coumarin (1.5-2.2%). Preferred by Brazilian confectioners for doçaria de noiva and cachaça macerates.
The Guyanas shield origin — small-volume, forest-managed tonka from coastal hinterlands. Profile sits between Venezuela and Brazil: strong coumarin crystals on the surface, almond-caramel depth, slight smoky note from traditional post-harvest alcohol soak.
Dipteryx odorata trees flower in the upper forest canopy at 20–30 m. Trees begin producing around year 8 and fruit for 100 years.
Large woody pods (each containing one seed) fall naturally. Collectors walk the forest floor in Bolívar state, gathering by hand.
The hard outer shell is cracked open with a machete to reveal the shrivelled, aromatic dark seed inside — the tonka bean.
Seeds are soaked in rum or cachaca, then sun-dried repeatedly. This process draws coumarin crystals to the surface, creating the white frosting.
Use a fine microplane: 3–4 passes over cream, ganache or vanilla ice cream. One bean replaces a vanilla pod in most recipes.
The molecules that make it taste like Kampot — and not like anything else.
What the lab sees: 1–3% coumarin (hay-almond-tobacco), trace 3,4-dihydrocoumarin (sweeter), and a fatty matrix that releases the aroma slowly under heat.
1.5%
Coumarin
1.0–3.5% range, fermented seed
1954
FDA ban
in food in the United States
0.1%
EU max
in many baked goods (DE, NL)
25%
Fixed oil
fatty matrix that holds aroma
Hay, almond, tobacco — the dominant warm-sweet note.
Sweeter, less herbaceous — rounds the coumarin.
Hay-like precursor — appears during fermentation.
Sweet creamy lift — explains vanilla cross-association.
Clove warmth, light spice — supporting note.
Almond top — bridges coumarin and vanillin.
| Pepper | Piperine | Oil |
|---|---|---|
★ Venezuelan tonka D. odorata · forest-fermented | 1.6% | 26% |
Brazilian cumaru D. odorata · Amazon, hand-cracked | 1.3% | 24% |
Nigerian tonka D. oppositifolia · weaker profile | 0.9% | 22% |
Synthetic coumarin Salicylaldehyde route · flat | 100% | 0% |
Sweet woodruff Galium odoratum · herbaceous proxy | 0.6% | 0% |
Amazonas state (Yekuana and Yanomami territories) · est. 2004
“The Venezuelan Amazonas cooperative linking Yekuana and Yanomami forest communities to the French perfumery and chocolatier markets — the benchmark source of high-coumarin (2.8-3.0%), alcohol-cured wild cumaru from Dipteryx odorata trees harvested under FairWild protocol.”
MethodsWild-harvest only, no plantation; fallen-pod collection April-June; community shelling; 24 h cachaça alcohol maceration; 30-day sun-dry; 60-day shade-dry; hand-selection for size, shine and crystal; vacuum-packed 500 g for export.
How the world cooks with it.
4 signature dishes
Tonka is the chef's quiet weapon — a fingertip of microplane shavings reads as 'almost-vanilla but more grown-up'.
A microplane pass over the warm cream — replaces or layers under vanilla.
Shaved on terrine before serving — meets the fat with hay and almond.
Cream infused with a cracked bean for 30 minutes — strain, set, top with red fruit.
Light butter sauce for white fish — last-second grating only.
What it's called, from Phnom Penh to Palermo.
حبوب التونكا
hubub at-tunka
零陵香豆
Línglíng xiāng dòu
Tonkaboon
Tonka Bean
Fève Tonka
Tonkabohne
टोंका बीन
Tonka bean
Kacang Tonka
Fava Tonka
トンカ豆
Tonka mame
통카빈
Tongkabin
لوبیای تونکا
lubia-ye tonka
Cumaru
Бобы тонка
Boby tonka
Haba Tonka
Tonkaböna
ถั่วทองก้า
Thua Thongka
Tonka Fasulyesi
Đậu Tonka
Protein
Sweet
Drink
Yes, in normal culinary quantities. Coumarin is the compound flagged by regulators (the FDA banned tonka in the US in 1954), but a single bean contains roughly 1–3 mg of coumarin per microplane use — well below the 0.1 mg/kg body-weight threshold that triggers concern. French pastry chefs like Pierre Hermé have used it for decades. The risk applies only to extreme daily consumption.
Sources