Sesame seeds come from the seed pods of the sesame plant, a flowering crop that grows in tropical and subtropical regions around the world. The plant produces small, oval pods that split open when ripe, releasing rows of tiny seeds inside. It’s one of the oldest oil crops known to humanity, with roots tracing back thousands of years to the Indian subcontinent.
The Sesame Plant
Sesame is a tall, upright plant that produces tubular flowers along its stem, typically white or pale pink. As the flowers fade, they give way to small seed capsules about 1 to 1.5 inches long. Each capsule contains eight rows of seeds packed tightly inside. Depending on the variety, those seeds can be white, yellow, brown, or black.
The plant thrives in hot climates and is well adapted to drought. It grows best in warm temperatures with well-drained soil, which is why it’s concentrated in tropical and subtropical zones. A single plant can produce dozens of pods over its growing season, and each pod holds enough seeds to fill a small pinch between your fingers.
Where Sesame Was First Grown
For years, many sources repeated the claim that sesame was first domesticated in Africa, since the broader plant family it belongs to is found primarily across tropical Africa. But genetic and chemical evidence tells a different story. Research published in the journal *Genetic Resources and Crop Evolution* examined this question closely and concluded that the Indian subcontinent is the most likely place where sesame was first cultivated as a crop. Two unique sections of the sesame genus are found exclusively in India, supporting this origin.
From India, sesame cultivation spread across the Middle East, Africa, and East Asia thousands of years ago. Today it’s grown commercially on every inhabited continent, with the largest producers concentrated in a band of warm-climate countries.
Where Sesame Grows Today
The biggest sesame-producing countries include Sudan, Myanmar, India, Tanzania, and China. These nations account for the majority of global output. Lighter-colored seeds (white and golden varieties) are more common in Europe, the Americas, West Asia, and the Indian subcontinent. Black and darker sesame seeds are mostly produced in China and Southeast Asia, where they feature prominently in local cuisines and traditional medicine.
Sesame is also grown on a smaller scale in the southern United States, Mexico, and parts of Central America. U.S. production has historically been limited, partly because of the challenges involved in harvesting the crop mechanically, but plant breeders in the southern U.S. have developed varieties with pods that don’t pop open on their own, making machine harvesting more feasible.
How the Seeds Are Harvested
Harvesting sesame has always been tricky because of one distinctive trait: the seed pods naturally split open when they mature. This is useful for the plant’s survival (it scatters seeds for the next generation), but it means that if you wait too long to harvest, the seeds fall to the ground and are lost. The phrase “open sesame” from *Ali Baba and the Forty Thieves* likely references this dramatic pod-splitting behavior.
Because of this, much of the world’s sesame is still harvested by hand. Workers cut the plants before all the pods have fully opened, then stack them upright or hang them to dry. As the remaining pods split, the seeds fall out and are collected on tarps or trays below. Manual harvesting allows for more precise handling and less waste, which matters for a crop where timing is everything. The trade-off is that it’s labor-intensive and expensive, and it depends on having enough workers available during the short harvest window.
Mechanical harvesting is growing more common in larger-scale operations, especially in the U.S. and parts of Africa. But standard farm machinery can damage the delicate pods and scatter seeds before they’re collected. That’s why breeders have focused on developing “non-dehiscent” varieties, plants whose pods stay closed at maturity so a combine can cut and thresh them without losing half the crop to the ground.
White, Black, and Brown Varieties
The color of a sesame seed depends on the variety of plant, not on how the seed is processed. White sesame seeds are the most widely available globally and the type you’ll find on burger buns and in tahini. They have a mild, slightly nutty flavor. Black sesame seeds have a stronger, more earthy taste and a slightly crunchier texture. They’re a staple in East Asian cooking, showing up in everything from Japanese rice balls to Chinese dessert soups.
Brown and golden varieties fall somewhere in between and are common in Middle Eastern and Indian cuisines. All colors of sesame seeds are nutritionally similar, packed with healthy fats, protein, calcium, and iron. The hulls on darker seeds tend to be left intact, which contributes to their stronger flavor and slightly higher mineral content. White sesame seeds are often sold hulled, giving them a smoother appearance and softer bite.
From Pod to Product
Once harvested and dried, raw sesame seeds go through cleaning to remove plant debris, dirt, and any broken seeds. From there, they’re either sold whole or processed into a wide range of products. Tahini is made by grinding hulled sesame seeds into a smooth paste. Sesame oil, a cooking staple across Asia and the Middle East, is pressed from either raw or toasted seeds. Toasted sesame oil has that distinctive rich, nutty aroma used as a finishing oil in stir-fries and dressings, while cold-pressed sesame oil is lighter and better suited for cooking at higher temperatures.
Sesame seeds also appear in halva, a dense confection popular across the Middle East and South Asia, and in Japanese gomashio, a simple seasoning of toasted sesame seeds and salt. The versatility of such a small seed helps explain why sesame has remained one of the world’s most widely cultivated crops for millennia.