Sesame oil holds an unusually long and well-documented place in Korean culinary history, with references stretching back to the Three Kingdoms period. While sesame seeds likely arrived on the peninsula through early agricultural exchanges with China, Korean processing and usage practices diverged in notable ways. Historical records suggest that by the 7th century, sesame oil was already associated with Buddhist temple cuisine, where vegetarian dietary rules encouraged monks to develop flavor from plant-based sources. In this context, toasted sesame oil functioned as both a cooking medium and a method for enhancing the nutritional density of vegetable-based meals.
Temple adoption played an important role in shaping the oil’s cultural meaning. Korean temples preserved agricultural knowledge through monastic manuals, many of which describe the roasting and pressing of sesame seeds as part of routine food preparation. These texts point to the importance of temperature control, cleanliness of seeds, and multi-stage filtering—methods that strongly resemble elements of today’s artisanal practices. Temple cuisine was foundational not because it popularized sesame oil among the general public, but because it established techniques and quality standards that spread outward over time.
By the Goryeo and early Joseon dynasties, sesame oil had clearly entered elite culinary culture. Documentation from royal kitchens shows that sesame oil was classified as a premium ingredient, distinct from perilla oil and the more utilitarian vegetable oils used in everyday cooking. Its applications were controlled and relatively limited: small amounts were used to finish dishes, season meats, or prepare ritual foods. The modest quantity harvested each year meant the oil remained expensive, and its presence in noble households signaled access to skilled labor and higher-grade agricultural products.
Archaeological findings add further insight. Ceramic storage vessels recovered from Goryeo sites show residues consistent with sesame oil, indicating that the oil was stored separately and preserved under cooler conditions, likely to protect its flavor and prevent rancidity. These vessels were often placed partially underground, an early form of temperature regulation that predates later kimchi-jar techniques. The physical infrastructure dedicated to sesame oil supports the argument that it was not merely another cooking fat but a controlled commodity with economic significance.
What distinguished Korean sesame oil from its counterparts elsewhere in East Asia was the emphasis on roasting. Chinese and Southeast Asian sources often reference lighter, unroasted or minimally roasted oils, whereas Korean records consistently describe higher roasting temperatures used to achieve a distinctly nutty profile. This preference shaped the development of Korean cuisine broadly. Even in eras when ingredients were scarce, the sensory impact of a small amount of strongly aromatic oil made it valuable for stretching flavor in stews, rice dishes, and preserved foods.
By the late Joseon period, sesame oil was firmly embedded in both ritual and culinary life, though still not widely accessible to the rural poor. Its role in memorial rites, temple offerings, and seasonal festivals indicates a symbolic function tied to purity, abundance, and agricultural renewal. These meanings—rooted in historical practice rather than romanticized nostalgia—explain why sesame oil later became one of the first ingredients Koreans sought out when living abroad. It represented continuity, not indulgence.
The next stage of sesame oil’s history involves its transition from an elite and ceremonial substance to a household staple through modernization and mechanized pressing. This shift not only democratized its use but reshaped the Korean flavor landscape in ways that continue today.
