Binjai

Mangifera caesia · Anacardiaceae · also known as Wani, Beluno, Jack (Brunei)

A large, fragrant wild mango of Borneo and Sumatra with soft, pale, juicy flesh — sweeter and less fibrous than most wild mangoes in its best forms, eaten fresh or pounded into fiery sambals across the Malay world.

Binjai illustration

At a glance

Taste
Sweet-sour and intensely aromatic, with soft, watery, pale-yellow flesh and a strong turpentine-mango perfume; the sweet Balinese "wani" form is prized, while other types lean sour.
Origin
Borneo, Sumatra, and the Malay Peninsula
Grown in
Indonesia, Malaysia, Brunei
Peak season
Summer

Sensory & practical profile

Taste fingerprint

  • Sweetness
  • Tartness
  • Aroma
  • Juiciness
  • Firmness

Approximate, at peak ripeness · 0–5

Ripe when
The greyish-brown skin softens and yields, releasing a strong sweet-turpentine perfume; firm fruit is sour and underripe.
How to eat
Scoop the soft sweet flesh from the skin fresh (seek the Balinese wani), or pound sour types into sambal; handle the skin knowing the sap can irritate.
Typical price
Budget

In Bali the sweet form of binjai, called wani, is a beloved local delicacy — proof that a single wild mango species can range from mouth-puckeringly sour to lusciously sweet depending on the tree.

When it's in season, by region

RegionPeak months
Southeast AsiaNov–Feb (Borneo, Bali), varying by island

How to select & store

Picking a ripe one

Choose fruit whose greyish-brown skin has softened and yields to gentle pressure, with a strong sweet-turpentine smell. The sweet Balinese wani form is the one to seek for eating fresh.

Storing it

A few days at room temperature once ripe — soft and quick to spoil. Eat fresh soon after ripening, or use sour types at once for sambal.

Practical uses

🍽️ Culinary

  • Sweet forms (wani) eaten fresh, the soft flesh scooped from the skin
  • Sour types pounded into sambal and eaten with rice and fish
  • Sliced green into rojak and sour salads
  • Juiced and made into preserves

🌿 Health & traditional

  • Bark and fruit used in Malay and Bornean folk medicine

🎎 Cultural

  • A cherished dooryard fruit across Borneo and Bali, where the sweet wani is a local specialty
  • Like many wild mangoes, its sap can irritate skin, so it's handled with care

Eating binjai: what to know

What regular consumption looks like

Binjai is a nutritious everyday fruit, best enjoyed as part of a varied diet. It is a good source of vitamin C (about 30 mg per 100 g), supporting immune function and helping the body absorb iron from plant foods.

Sensible amounts

A typical fruit serving is roughly a handful, one medium fruit, or about 80 g, and two or more varied fruit servings a day is a sensible everyday pattern.

Evidence & conditions

As a whole fruit, Binjai contributes fibre, vitamins, and beneficial plant compounds, but it has not been shown to treat or prevent any specific condition — so it is best enjoyed as part of a healthy diet rather than as a remedy.

Safety notes

  • It belongs to the mango/cashew family: the sap and skin contain urushiol (the poison-ivy irritant) and can cause an itchy rash in sensitive people, though the ripe flesh is fine. Those allergic to cashew, pistachio, or poison ivy should be cautious handling it.

Binjai: frequently asked questions

What does binjai taste like?

Sweet-sour and intensely aromatic, with soft, watery, pale-yellow flesh and a strong turpentine-mango perfume; the sweet Balinese "wani" form is prized, while other types lean sour.

When is binjai in season?

Binjai is typically in season Southeast Asia (Nov–Feb (Borneo, Bali), varying by island). Peak months shift between the northern and southern hemispheres.

How do you eat binjai?

Scoop the soft sweet flesh from the skin fresh (seek the Balinese wani), or pound sour types into sambal; handle the skin knowing the sap can irritate.

How do you know when binjai is ripe?

The greyish-brown skin softens and yields, releasing a strong sweet-turpentine perfume; firm fruit is sour and underripe.

Is binjai good for you?

Binjai is a nutritious everyday fruit, best enjoyed as part of a varied diet. It is a good source of vitamin C (about 30 mg per 100 g), supporting immune function and helping the body absorb iron from plant foods.

How much binjai should you eat?

A typical fruit serving is roughly a handful, one medium fruit, or about 80 g, and two or more varied fruit servings a day is a sensible everyday pattern.

The mango has many wild relatives across Southeast Asia, and the binjai is one of the largest and most fragrant. A tall rainforest tree of Borneo and Sumatra, it bears big greyish fruit with soft, pale, watery flesh and a powerful sweet-turpentine perfume that announces itself long before you cut it.

Sweet or sour, by the tree

Binjai’s character swings widely. Sour forms are pounded into fiery sambal and eaten with rice and fish, or sliced green into rojak; the sweet Balinese form, called wani, is prized enough to be a local delicacy, scooped soft from the skin like a lush, low-fiber mango. As with several wild mangoes, the sap can irritate skin, so the fruit is handled with a little care. It’s a classic dooryard and market fruit of the Malay world — rarely exported, quick to spoil, and best met where it grows, alongside its equally aromatic cousins the kuini and horse-mango.

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