Black Glutinous Rice: Honest Thai Mill Offer and 7 Proven Buying Tips

Black glutinous rice is the deep purple sticky rice used across Thailand, Laos, Indonesia and the Philippines for desserts, sweet porridge and festival dishes. In Thai it’s called khao niao dam. We supply Thai black glutinous rice to importers, Asian grocery wholesalers, dessert makers and food manufacturers worldwide, alongside our white glutinous rice. This page explains what it is, how it cooks, the specs we ship, packing options and how to place an order.

What Is Black Glutinous Rice?

It’s a sticky rice, botanically the same family as the white glutinous rice used for mango sticky rice, but with a bran layer full of dark purple pigment. Raw, the grains look black or very dark violet. Cooked, they turn a rich purple and stain everything around them, including the coconut milk you pour on top.

Like all glutinous rice, black glutinous rice has almost no amylose. Its starch is nearly all amylopectin, which is what makes it cling together when cooked. And despite the name, it contains no gluten. “Glutinous” just means glue-like. The glutinous rice article on Wikipedia covers the botany if you want it.

Most black glutinous rice is sold as whole grain, with the bran left on. That bran is where the colour, the nutty flavour and most of the fibre sit. Some mills lightly polish it, which gives a paler, softer grain, but the traditional product is unpolished.

Black Glutinous Rice vs Other Dark Rice

Buyers mix these up all the time, and it causes real problems when a customer orders one and receives another. Here’s how they differ.

Rice	Sticky when cooked?	Colour	Main use
Black glutinous rice	Yes, very	Deep purple-black	Desserts, sweet porridge, rice cakes
Black non-glutinous rice (forbidden rice type)	No, separate grains	Black-purple	Savoury dishes, salads, health food
Riceberry	Slightly soft, not sticky	Dark purple	Everyday healthy table rice
Red cargo rice	No	Reddish brown	Table rice, health food
White glutinous rice	Yes, very	Opaque white	Mango sticky rice, savoury sticky rice

If your customers want a dark rice for savoury meals, you probably want Riceberry rice or Thai red cargo rice. If they’re making desserts, black glutinous rice is the one. The general black rice overview on Wikipedia is a handy reference for the wider group.

How Black Glutinous Rice Is Used

In Thailand you’ll find it at almost every dessert stall. A few of the dishes it goes into:

• Black sticky rice with coconut milk, sometimes with taro, egg custard or mango on top.
• Sweet black rice porridge, cooked slow with palm sugar and finished with salted coconut cream.
• Bubur pulut hitam in Indonesia, Malaysia and Singapore, a thick, warm pudding.
• Biko and puto style rice cakes in the Philippines.
• Khao lam, sticky rice roasted inside bamboo tubes, often mixed with white glutinous rice.
• Purple rice wine and fermented desserts in parts of Southeast Asia and China.
• Modern uses: ice cream, bubble tea toppings, gluten-free baked goods, breakfast bowls and snack bars.

That last group is where we’ve seen demand grow fastest. Cafés and food brands in Europe, North America and Australia like black glutinous rice because the colour photographs well and it’s naturally gluten-free.

Taste, Texture and Nutrition

Taste. Nutty and slightly earthy, a bit like toasted grain, with a faint sweetness. It pairs very well with coconut, palm sugar, banana and mango.

Texture. Chewier than white sticky rice because of the bran. The grains cling together but each one still has some bite. Many cooks mix it 50:50 or 30:70 with white glutinous rice to soften it.

Nutrition. Because the bran is left on, black glutinous rice carries more fibre than polished white rice. The dark colour comes from anthocyanins, the same group of pigments found in blueberries and purple cabbage. We’re careful not to make medical claims, but plenty of shoppers choose it as a whole grain over white rice for those reasons.

How to Cook Black Glutinous Rice

This is useful for your customers, and it’s also the first thing to check when you test a sample.

Steaming (traditional)

1. Rinse the rice a few times until the water runs clearer. It will always run a little purple.
2. Soak for at least 4 hours, ideally overnight. Black glutinous rice needs a longer soak than white because of the bran.
3. Drain and steam in a cloth-lined basket or bamboo steamer for 35 to 50 minutes, turning once halfway.
4. It’s done when the grains are tender and chewy, with no hard centre.

Boiling for porridge or pudding

1. Rinse and soak for 2 to 4 hours.
2. Simmer with plenty of water, around 1 part rice to 6 or 7 parts water, stirring now and then.
3. After about 45 minutes to an hour, add palm sugar and a pinch of salt and keep cooking until thick.
4. Serve warm with salted coconut cream on top.

A rice cooker with a porridge setting also works well if you soak first.

The Black Glutinous Rice We Supply

We source Thai black glutinous rice from growing areas in northern and northeastern Thailand, where sticky rice is the everyday staple. It’s cleaned, graded and colour-sorted before packing. Because it’s a specialty crop, we arrange it per order rather than holding the same huge stock we keep for white rice. Tell us your volume and timing and we’ll confirm availability and price.

Options we can offer:

• Whole grain black glutinous rice, unpolished, the standard product.
• Lightly polished black glutinous rice for a softer cook and shorter soak.
• Mixed packs of black and white glutinous rice, ready for blended desserts.
• White glutinous rice in 5%, 10% and 25% broken to go with it. See our Thai glutinous rice and Thai glutinous rice 25% broken pages.

Many of our customers order black glutinous rice as part of a mixed container with white sticky rice, jasmine and other Thai grades. That’s often the easiest way to bring in a specialty line without tying up a full container.

Black Glutinous Rice Specifications

Standard figures for our whole grain grade are below. Final values are agreed per contract and checked by independent inspection before loading.

Parameter	Thai Black Glutinous Rice
Origin	Thailand
Type	Black (purple) glutinous rice, whole grain
Grain shape	Short to medium, plump
Colour	Deep purple to black, natural
Moisture	14% maximum
Broken grains	5% to 10% maximum, by grade
Purity (glutinous)	92% minimum
White or off-colour grains	3% maximum
Damaged grains	1% maximum
Foreign matter	0.2% maximum
Paddy	10 grains per kg maximum
Processing	Cleaned, graded, colour sorted
Crop	Current crop
Shelf life	12 months in cool, dry storage

If you need tighter limits for retail or manufacturing, say so and we’ll quote to that spec. Our rice standard page explains how we grade Thai rice in general.

Packing Options

• Retail: 400 g, 500 g, 1 kg and 2 kg vacuum packs or printed pouches. Vacuum packing is popular for black glutinous rice because it keeps the bran fresher.
• Wholesale: 5 kg, 10 kg and 25 kg PP or PE-lined bags.
• Food industry: 25 kg and 50 kg bags, or jumbo bags on request.
• Branding: your label, our brands, or plain. We print in English, Chinese, Thai, Korean, Japanese, French and other languages.

For the white sticky rice side of an order, our glutinous rice 25kg bag wholesale guide covers the common bag formats.

Who Buys Black Glutinous Rice From Us

• Asian supermarket chains and grocery importers in Europe, North America, the Gulf and Oceania.
• Dessert shops, bubble tea brands and café groups looking for a steady supply.
• Food manufacturers making puddings, snacks, ready meals and frozen desserts.
• Health food and organic retailers.
• Distributors in Asian markets where black sticky rice is already a staple dessert grain.

We already ship glutinous rice into several of those markets. Have a look at our pages for buyers in Malaysia, Korea, Japan, China and the UK, or our US focused guide on glutinous rice suppliers for US Asian markets.

Storage and Shelf Life

Whole grain rice keeps its bran, and bran contains oil. That’s good for flavour but it means black glutinous rice can go stale faster than polished rice if it’s stored badly. Some simple rules:

• Keep it cool and dry, ideally below 25°C and away from direct sun.
• Stack bags on pallets, not on the floor or against outside walls.
• Rotate stock first in, first out.
• For long sea transit to hot countries, ask about vacuum packs or bags with inner liners.

Stored like that, it keeps well for around a year.

7 Proven Tips for Buying Black Glutinous Rice

1. Check that it’s actually glutinous. Cook a sample. If the grains stay separate, it’s black non-glutinous rice, which is a different product.
2. Look at colour evenness. A lot with lots of brown or white grains mixed in has been poorly sorted or blended.
3. Ask about polishing. Whole grain and lightly polished cook very differently. Your customers will notice.
4. Confirm crop year. Fresh crop has a better aroma and softer bite. Old stock can taste dusty.
5. Choose packing for your climate. Hot, humid destinations really benefit from vacuum or lined bags.
6. Combine it with other lines. If your volume is modest, add it to a mixed container with white glutinous rice or jasmine. It cuts freight cost per kilo.
7. Get inspection at loading. Independent checks on moisture, purity and foreign matter protect you. See our rice supplier with SGS inspection page.

Shipping and Documents

We quote FOB Bangkok or Laem Chabang, or CFR and CIF to your port. Every shipment comes with the full export set: invoice, packing list, bill of lading, certificate of origin, phytosanitary certificate and fumigation certificate, plus health or analysis certificates if your country asks for them. More detail in our rice export documents guide and our step by step piece on how to import rice from Thailand.

Where It Grows in Thailand

Sticky rice is the everyday rice of northern and northeastern Thailand. In Isan, people eat it with their hands at almost every meal, rolled into a small ball and dipped into som tam, larb or grilled meat. The dark variety is grown in smaller amounts in the same regions, often on family farms and in upland fields, which is one reason supply is tighter and prices are higher than for white sticky rice.

Planting usually starts with the rains around May and June. Harvest falls roughly from November into January. After harvest, the paddy is dried, stored and milled through the year. If you want to plan purchases around the crop, our Thai rice harvest season article explains the timing for Thai rice in general.

How It’s Processed for Export

Processing for whole grain dark sticky rice is simpler than for white rice, but it still needs care.

1. Drying. Paddy is dried to a safe moisture level so it can be stored without mould.
2. Dehusking. The outer husk is removed. The bran stays on.
3. Cleaning and grading. Stones, dust, light grains and broken pieces are separated by size.
4. Colour sorting. Optical sorters remove white grains, brown grains and anything off colour. This is where a clean, uniform look comes from.
5. Packing. Packed into bags or vacuum packs, often with a nitrogen flush or vacuum for retail.

For a lightly polished version, the mill takes off part of the bran before sorting. It’s a balance: too much polishing and the colour fades, too little and the grain takes a long time to cook.

Recipes Your Customers Will Ask About

If you sell to shops or cafés, sooner or later someone will ask what to do with it. A few simple ideas, written the way a home cook would follow them.

Thai black sticky rice with coconut

Soak one cup overnight, then steam about 45 minutes until tender. Warm a can of coconut milk with a few spoons of sugar and a good pinch of salt. Pour half over the hot rice, cover and leave 15 minutes to soak in. Serve with the rest of the coconut milk on top and fresh mango or banana.

Black rice pudding (pulut hitam style)

Rinse and soak one cup. Simmer with about 6 cups of water and a knotted pandan leaf for around an hour, stirring now and then. Add palm sugar to taste and cook until thick. Serve warm with thick salted coconut cream.

Mixed black and white sticky rice

Mix one part dark with two parts white glutinous rice, soak overnight and steam together. You get a lavender coloured sticky rice that’s softer than pure black and looks great with savoury Thai dishes.

Breakfast bowl

Cook it like porridge, a little less sweet, and top with yoghurt or coconut yoghurt, fruit and toasted coconut. This is the version cafés in Europe and Australia tend to put on menus.

Why Demand Is Growing Outside Asia

Ten years ago, most dark sticky rice exported from Thailand went to Asian grocery stores serving people who grew up eating it. That’s still a big market, but we now see more orders from buyers with no Asian background at all.

A few reasons keep coming up when we talk to these customers. Whole grain and gluten-free foods are selling well. Natural colour is popular with food brands trying to avoid artificial dyes. Dessert cafés and bubble tea chains want toppings that look striking on social media. And plant-based and dairy-free menus pair naturally with coconut-based desserts.

For importers, that means black glutinous rice is no longer only an ethnic grocery line. It can sit in health food shops, café supply catalogues and supermarket “world foods” aisles too.

Pricing: What Drives the Cost

Dark sticky rice costs more than white glutinous rice, and buyers sometimes ask why. The main factors:

• Smaller planted area. Less is grown, so supply is tighter.
• Lower yields. Many dark varieties yield less paddy per rai than common white varieties.
• Extra sorting. Getting a uniform colour takes more sorting passes and more rejects.
• Packing. Vacuum and lined packs cost more than plain PP bags.
• Season. Prices are usually best a couple of months after harvest and firmer late in the season.

We quote firm prices on the day based on volume, packing and destination. For a sense of how white sticky rice is priced, see our Thai glutinous rice wholesale price article.

Quality Checks We Run

Every lot is checked by our team before packing and by an independent surveyor before loading. The checks that matter most for dark sticky rice are:

• Glutinous purity: a cook test and a simple iodine stain test show non-glutinous grains mixed in.
• Colour uniformity: counting white, brown and pale grains in a sample.
• Moisture: kept at or below 14% so the rice travels safely.
• Foreign matter and paddy: stones, husk and unhulled grains.
• Insects and storage condition: checked before fumigation and container sealing.

You can read about our general process on the quality control page. If you’d like to add your own tests, such as heavy metals or pesticide residue for a particular market, we’ll arrange them with an accredited lab.

Black Glutinous Rice in a Mixed Container

For many buyers the smart move is to add black glutinous rice to an order they’re already placing. A typical mixed load might be white glutinous rice in 25 kg bags, Thai jasmine in 5 kg retail packs and a few tons of dark sticky rice in 1 kg vacuum packs. One container, one set of documents, one freight bill. Our bulk sticky rice supplier page and sweet rice wholesale page cover the white side of that mix.

Frequently Asked Questions

Is black glutinous rice the same as forbidden rice?

Not quite. “Forbidden rice” is usually a non-sticky black rice. Black glutinous rice is the sticky type used for desserts.

Does black glutinous rice contain gluten?

No. It’s naturally gluten-free. The word glutinous refers to stickiness.

Why does black glutinous rice turn purple when cooked?

The dark pigments in the bran dissolve slightly in water and heat, so the cooked rice and its liquid turn purple.

Can I mix it with white glutinous rice?

Yes, and many cooks do. It softens the texture and stretches the colour. We can supply both in the same shipment.

What’s the minimum order for black glutinous rice?

It depends on season and packing. Smaller volumes are easiest inside a mixed container. Ask us for current numbers.

Do you offer organic black glutinous rice?

On request, subject to availability of certified crop. Tell us the certification you need.

How long does it need to soak?

At least 4 hours for steaming, and overnight gives the best texture. Lightly polished grain can get away with 2 to 3 hours.

Can it be cooked in a rice cooker?

Yes, after soaking. Use the porridge or brown rice setting and a little more water than you would for white sticky rice. The texture will be softer than steamed.

Is it good for food manufacturing?

Yes. Manufacturers use it in puddings, ice cream bases, snack bars, ready desserts and flour blends. We can supply broken grades or flour-grade lots for processing at a lower price than whole grain retail quality.

What does it pair well with?

Coconut milk and cream, palm sugar, pandan, mango, banana, taro, durian and sweet beans. In cafés it often goes with yoghurt, berries and toasted nuts.

Will the colour stain my equipment?

It can stain cloth and some plastics a light purple. Stainless steel and bamboo steamers wash clean. Most kitchens keep a separate steaming cloth for it.

How do I know the grade I’m buying is consistent?

Ask for a reference sample to be kept for your account. We check every new lot against it before packing, and the surveyor can compare it at loading too.

Order Thai Black Glutinous Rice

If your customers ask for black sticky rice, we can help you bring in a clean, well sorted Thai black glutinous rice in the packing that suits your market. Send us the volume, pack size, destination port and any spec requirements, and we’ll reply with availability, price and a sample offer.

Email info@dethairice.com, WhatsApp +66 81 034 6390, or use our contact page. You can also browse our full product range or read about us as a Thai glutinous rice exporter.