Black vs White Sesame Seeds: What the Hull Changes and Which to Buy

Black sesame seeds and white sesame seeds come from the same plant, Sesamum indicum. Yet they taste different, behave differently in the pan, and suit different jobs. Swap one for the other without thinking and you'll get bitter tahini, or a dessert that tastes thin and flat.

The difference comes down to one thing: the hull. This guide explains what that means in practice, which seed to reach for in which dish, how to toast each one properly, how to make tahini from scratch, and how to stop a bag of sesame going off before you've finished it.

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The Hull Is the Whole Story

Every sesame seed has a thin outer coat, the hull. On black sesame, the hull stays on, and it's where the dark colour lives. On white sesame, the hull has been removed after harvest, revealing the pale, creamy kernel underneath.

That single processing step changes almost everything. The hull adds a slight bitterness and a more assertive, earthy character. Take it off and you get a seed that is sweeter, milder and softer. You can often see the difference before you taste it: unhulled seeds look shinier, while hulled seeds have a matte, slightly translucent finish.

One wrinkle worth knowing: "white" doesn't automatically mean hulled. Sesame is sold both ways, and unhulled white seeds are tan rather than bright white. Our organic hulled white sesame is properly hulled, which is why it's so pale and mild.

	Black Sesame	Hulled White Sesame
Hull	On	Removed
Flavour	Deep, earthy, slightly bitter	Sweet, mild, buttery
Texture	Crunchier, more noticeable	Softer, creamier
Best for tahini	Only if you want bold, bitter black tahini	Yes, the standard choice
Best for baking toppings	Striking contrast, stronger taste	Classic, understated
Best for desserts	Yes, bitterness balances sweetness	Works, but tastes thinner
Toasting cue	Smell and sound, not colour	Turns light golden

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Which One for Which Job

Reach for white sesame when

• You're making tahini or hummus. Hulled seeds give a pale, smooth, creamy paste. Unhulled seeds give a darker, more bitter one.
• You want a quiet garnish. Over noodles, roast vegetables, avocado toast or a salad, white seeds add nuttiness without shouting.
• You're baking. Burger buns, bagels, flatbreads, crackers and biscuits are all classic white sesame territory.
• You're crusting fish or tofu and want a gentle, sweet crunch.

Reach for black sesame when

• You're making something sweet. Black sesame ice cream, mochi, sesame cookies and the Chinese black sesame soup all rely on that slightly bitter edge to balance the sugar. White sesame makes these taste thin by comparison.
• You want contrast on the plate. Black seeds over white rice, sushi, a pale dip or a cream-coloured soup look as good as they taste.
• You want more flavour from the same pinch. Black sesame is the bolder of the two, so a little goes a long way.
• You're making furikake-style seasoning or gomasio (more on that below).

Use both together when

A mix of black and white is the classic coating for seared tuna or salmon, and it looks far better than either alone. It also works well scattered over a stir-fry, a rice bowl or a loaf just before it goes in the oven.

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How to Toast Sesame Seeds Properly

Raw sesame is pleasant. Toasted sesame is a different ingredient altogether, with deeper nuttiness and none of the faint bitterness. It takes about two minutes, and it's the single best thing you can do for either seed. Our guide to toasting, blooming and tempering spices covers the general method.

White sesame

1. Heat a dry frying pan over medium heat. No oil.
2. Add the seeds in a thin, even layer.
3. Shake the pan constantly for 2 to 3 minutes, until the seeds turn a light, fragrant golden brown.
4. Tip them straight onto a cold plate. The residual heat in the pan will keep cooking them, and burnt sesame is bitter and unusable.

Black sesame: you can't go by colour

This is where people go wrong. Black seeds are already dark, so there's no visible golden stage to watch for. Use your nose and ears instead. Same pan, same medium heat, but stop when you can clearly smell a toasty, nutty aroma, and you hear a faint popping as the seeds begin to puff. That usually takes a minute to two minutes. Pull them off the heat at the first strong smell and tip them onto a cold plate, because by the time they smell burnt it's too late.

Toast small batches

Only toast what you'll use in the next few days. Toasted seeds go stale faster than raw ones because the heat has already started releasing the oils.

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Making Tahini at Home

Homemade tahini is simpler than most people expect, and noticeably fresher than a jar that's been on a shelf for months. Use hulled white sesame for a classic pale, smooth result.

1. Toast about 150 g of hulled white sesame as above, until light golden. Let it cool completely.
2. Tip it into a food processor and blend for a couple of minutes. It will look like crumbly sand at first.
3. Add 2 to 3 tablespoons of a neutral oil or mild olive oil and keep blending, scraping down the sides regularly.
4. Keep going for 5 to 10 minutes. The paste will go from dry and clumpy to thick and then smooth and pourable. Add a splash more oil only if it needs it.
5. Season with a pinch of salt and store in a clean jar.

Quantities are a starting point, since food processors vary in how well they handle small batches. Be patient. It looks wrong for several minutes and then suddenly comes together.

If you'd like to try black tahini, use toasted black sesame instead. You'll get a dark, bold, noticeably bitter paste that's lovely in dressings and drizzled over roasted vegetables or desserts, but it's a different thing from classic tahini and not a drop-in replacement in hummus. For hummus itself, our hummus recipe is a good place to start, and a little toasted cumin on top never hurts.

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Gomasio: The Two-Ingredient Seasoning

Gomasio is a Japanese table seasoning made from toasted sesame and salt, ground together coarsely. It's a brilliant way to use black sesame in particular, and it lifts rice, eggs, avocado, steamed vegetables and soups.

Start at around 10 parts toasted sesame to 1 part salt by volume, grind it in a mortar until roughly half the seeds are cracked, and adjust the salt to taste. Keep it in a small jar and make it in small batches, since it's at its best in the first couple of weeks.

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More Ways to Use Sesame

• 🍜 Stir-fries and noodle bowls: toasted seeds scattered at the end, with a pinch of Chinese five spice in the sauce or marinade
• 🥗 Dressings: toasted white sesame ground with a little soy, rice vinegar and honey
• 🍞 Bread and crackers: pressed onto the crust before baking, or mixed into the dough. Pair with pumpkin seeds and nigella seeds for a seeded loaf
• 🧆 Dukkah-style blends: toasted sesame, cumin and coriander seeds, ground coarsely with roasted nuts
• 🍨 Black sesame desserts: ice cream, mochi, cookies and sweet soups, where the bitterness earns its place
• 🥚 Everyday sprinkling: over eggs, avocado, yoghurt, roast kumara or a bowl of rice

For a broader look at cooking with seeds, our guide to super seeds covers how sesame sits alongside chia, flax and pumpkin.

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Can You Substitute One for the Other?

For garnishing, yes. Either seed adds crunch and a toasty note, and the main difference is looks and intensity. Use a little less black if you're swapping it in for white.

For tahini and anything smooth and creamy, stay with white. Black sesame will turn it bitter and gritty.

For desserts and sweet pastes, black is the better choice. White works, but you'll lose the depth that makes the dish taste of sesame in the first place.

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Storing Sesame Seeds

Sesame seeds are roughly half oil by weight. That's what makes them so rich and nutty, and it's also why they go rancid if they're stored badly.

• Airtight container, cool, dark cupboard, well away from the stove and kettle
• For a large bag you won't finish within a few months, keep part of it in the fridge or freezer
• Hulled seeds, with their protective coat removed, tend to turn a little sooner than unhulled, so buy a size you'll get through
• Toast only what you need

The test is smell. Fresh sesame smells faintly sweet and nutty. Rancid sesame smells sharp, stale and a bit like old cooking oil or paint, and it tastes bitter in a way that has nothing to do with the hull. If it smells off, bin it. More in our guide to storing spices for maximum freshness.

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A Note on Allergies

Sesame is one of the allergens that packaged food must declare in New Zealand and Australia, and it turns up in places people don't expect, including tahini, hummus, some breads, dressings and spice blends. If you're cooking for guests, it's worth asking about allergies before you reach for the seeds.

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Frequently Asked Questions

What's the difference between black and white sesame seeds?

The hull. Black sesame seeds keep their hull, which gives them a darker colour and a stronger, slightly bitter flavour. White sesame seeds are usually hulled, which makes them milder, sweeter and creamier.

Where can I buy sesame seeds in NZ?

SpiceBloom stocks organic black sesame seeds and organic hulled white sesame seeds, both grown in India and packed in Auckland, with delivery across New Zealand.

Which sesame seeds are best for tahini?

Hulled white sesame. It gives a pale, smooth, mild paste. Unhulled and black seeds make a darker, more bitter tahini.

Does toasting black sesame seeds change their colour?

Not in any way you can see, which is why you toast black sesame by smell and sound rather than colour. Watch for a clear nutty aroma and a faint popping.

Is black sesame stronger than white?

Yes. The hull adds an earthy, slightly bitter note, so black sesame tastes bolder and more pronounced than hulled white sesame.

Do I need to toast sesame seeds?

You don't have to, but it makes a big difference. Raw sesame is mild with a trace of bitterness, and toasting brings out a sweeter, nuttier flavour. Two minutes in a dry pan is all it takes.

How long do sesame seeds last?

Stored airtight in a cool, dark place, several months. Because they're about half oil, they can go rancid, so smell them before use and keep larger quantities in the fridge or freezer.

Can I use white sesame instead of black in a recipe?

As a garnish, yes. In desserts, pastes and anything where the bold sesame flavour matters, black is a better choice, and white will taste thinner.

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This article is general food information about sesame seeds and how to cook with them. It isn't medical or dietary advice. Sesame is a recognised allergen, so if you or anyone you're cooking for has a sesame or seed allergy, please check with your doctor or allergy specialist.