Changchang Food Co., Ltd. is a producer of traditional Korean vegetable oils, including sesame and perilla oil. The company employs low-temperature pressing techniques to manufacture its products, which are sold domestically and internationally. The company was established as an agricultural corporation in late January 2020 and launched its products at the Wanju Local Food offline store in 2021. Changchang Food was recognized at the 2022 International Fermented Food Expo (JIFFE) for its excellent products and achieved HACCP certification for both sesame and perilla oil that year. On April 30, 2024, the company filed a patent for its “Method for Manufacturing Perilla Oil Using Low-Temperature Roasting.” In 2023, Changchang Food sold 1,153 kg of perilla oil, 11,952 kg of raw perilla oil, and 2,139 kg of sesame oil in South Korea. In addition, the company exported 335 kg of oil to the United States in November 2022 and August 2023. The products are available for purchase on various e-commerce platforms, including SSG.COM, LOTTEON, Interpark, Coupang, and Kakaotalk Shopping. The company cultivates approximately 71,166 square feet of sesame and perilla seeds, supplementing any shortfall with local purchases.

Changchang Food’s products are sold under the brand name of “Friendly Park Seobang.” These products are made from 100% domestically produced perilla and sesame seeds, which are pressed only once using a low-temperature pressing method. This method guarantees the production of pure oil through a secondary filtering process. The bottling process employs a semi-automatic system with a filter to prevent the contamination of foreign substances, with an output capacity of up to 200 bottles of 300ml per day. The product line includes bottles of sesame and perilla oil in 100ml, 180ml, and 300ml sizes, as well as 5ml raw perilla oil sticks in packs of 10. Additionally, the product line includes 180ml and 300ml “Chamdeul Set” packages containing both sesame and perilla oils. The 5ml “Perilla oil stick” is particularly convenient for consumption, with a recommended 1 to 2 sticks daily, directly or in salads, juices, and various dishes. Both sesame oil and perilla oil should be stored at cool room temperature, with a shelf life of one year from the date of manufacture.

Sesame and perilla oils are traditional Korean vegetable oils. They are free of sodium, sugar, trans fats, and cholesterol. Sesame oil contains 2% carbohydrates, 174% fat, 1% protein, and 98% saturated fat per 100ml (897 kcal), with 45% omega-6 fatty acids. It contains 40% monounsaturated fatty acids and lignans, an antioxidant that helps prevent cancer and inhibits aging. With 53% saturated fat per 100ml (867 kcal), perilla oil is rich in omega-3 fatty acids (60%), which effectively prevent cardiovascular disease, cancer, inflammatory diseases, and rheumatoid arthritis. It also has anti-inflammatory properties and helps prevent skin diseases.

Producing high-quality vegetable oil that retains the benefits of oils requires a significant investment of time and effort. Pressing the oil more than two or three times will significantly impair the quality of the product. Changchang Food guarantees that its products are pressed only once, impurities are removed using a fine filter, and bottling is done with infrared sterilization. The sesame and perilla seeds are sourced directly from farms and undergo intensive washing (4-5 times) before being roasted using a low-temperature technique to prevent the formation of benzopyrene, a carcinogenic compound produced when sesame seeds are excessively roasted and blackened. The company has successfully passed benzopyrene detection tests conducted by professional testing agencies, reflecting its commitment to strict hygiene and quality control.