Japan’s government is spotlighting a post-harvest trick that sounds almost too simple: hit harvested fruit and vegetables with a brief flash of near-infrared light, and they stay fresher longer. The technology, branded iR Fresh (iRフレッシュ®) by Shikoku Research Institute, is the centerpiece of a recent JapanGov FoodTech post.

The idea is not magic packaging. According to JapanGov and the institute, a strong source around 850 nm for roughly 0.1-0.2 seconds is enough to trigger plant defenses. Produce reads the intense near-IR as a cold or dry warning, lowers respiration and water loss through transpiration, and becomes less inviting to mold.

JapanGov and the company call the lettuce finding a “world first”. That label is marketing. The scientific anchor is peer-reviewed work, including Kozuki et al.…