How Sterile-Pack Technology Turned Instant Rice Into a Global Staple

Instant rice — pre-cooked rice sealed in a tray or pouch that needs only a few minutes in a microwave or hot water — has moved from a niche Korean product to a growing category on supermarket shelves worldwide. The shift rests on a manufacturing process known as aseptic, or sterile, packaging, first commercialized in Korea three decades ago and now used to supply dozens of overseas markets.

How the sterile-packaging process works

South Korean food maker CJ CheilJedang says rice destined for its Hetbahn (Hapbap) line is stored at about 15°C to slow fat oxidation, then milled on the same day it is cooked so the grain stays as fresh as possible. The rice is cooked directly inside its final packaging — thousands of trays at a time — using repeated cycles of high-temperature, high-pressure steam, rather than being cooked first and packed afterward.

Packing takes place in clean rooms the company compares to semiconductor factories; the Korea Herald reported the air there is kept to fewer than 100 dust particles per square foot. The sealed, multi-layer polypropylene trays then go through several days of microbial testing before shipment. The company says this keeps the rice safe and edible at room temperature for nine months without added preservatives.

From a 1996 Korean launch to a 60-country export line

CJ CheilJedang launched Hetbahn in December 1996 as Korea's first aseptically packaged cooked rice, and the brand marks its 30th anniversary in 2026. The company now runs two domestic plants — in Jincheon and Busan — with a combined output of about 700 million units a year, built on roughly 1 trillion won of cumulative investment, according to the company's own figures reported by Korean financial outlet MT and the Korea Herald.

The product line is now sold in about 60 countries, with the United States as its largest overseas market, per MT and the Korea Herald. In the U.S., the rice is marketed under the Bibigo label; the Korea Herald put its U.S. market share at about 12%, while the Korea JoongAng Daily described it as reaching 'low double digits,' compared with roughly 45% held by the long-established brand Ben's Original. Both outlets noted that only about 2% of Americans currently buy the product, which the company frames as room for growth rather than a ceiling.

Exports are rising even as the home market cools

Domestic estimates of CJ CheilJedang's share of Korea's packaged-rice market differ slightly between outlets — the Korea JoongAng Daily cited about 60%, while the Korea Herald cited about 65% — but both report that the company's lead is narrowing as younger Koreans eat less rice overall and cheaper rival brands gain shelf space. In response, the company has pushed into overseas sales: the Korea Herald reported that international sales grew roughly 30% a year over the past five years, and that overseas revenue rose from 8% of total brand sales in 2021 to 15% in 2025.

The Korea JoongAng Daily reported that CJ CheilJedang is targeting 1.5 trillion won (about $1.13 billion) in annual Hetbahn sales by 2028, up from 1.1 trillion won in 2025, with overseas sales expected to reach 20–25% of that total. The company holds 267 patents tied to its production process, the outlet reported, and is developing higher-protein, multigrain versions aimed at health-conscious shoppers, including a 'shaped rice' product using plant proteins from soybeans, wheat and peas due in December 2026.

A global market built on convenience

The broader instant rice category is growing beyond any single company. Market research firm Fortune Business Insights estimates the global instant rice market at $4.98 billion in 2026, up from $4.77 billion in 2025, and projects it will reach $7.73 billion by 2034 — a compound annual growth rate of 5.63%. The same research shows Asia-Pacific accounting for about 79% of the market in 2025, with North America, the Middle East and Africa, Europe and South America making up the remainder.

Why this matters now

The figures were disclosed at a media briefing CJ CheilJedang held in Jincheon on October 21, 2026, timed to Hetbahn's 30th anniversary, where the company laid out its production process and its 2028 overseas sales targets, as reported by MT, the Korea Herald and the Korea JoongAng Daily. The announcement illustrates a broader pattern: as rice consumption falls among younger consumers in Korea, manufacturers are relying more on sterile-packaging technology to reach new buyers abroad who want shelf-stable, ready-to-heat staples rather than freshly cooked rice.