To provide a freshness retaining method by which can suppress moisture loss of greengrocery and retain freshness of greengrocery for an extended period, and to provide a freshness retainer.SOLUTION: The freshness retaining method of greengrocery is a method for storing, in pseudo-microgravity, parts for having vessels of greengrocery. By storing the parts for having vessels of greengrocery in pseudo-microgravity, moisture loss of greengrocery is suppressed, with freshness of greengrocery retained for an extended period.SELECTED DRAWING: Figure 7【課題】青果物の水分損失を抑制し、青果物の鮮度を長期間保ち得る青果物の鮮度保持方法及び鮮度保持装置を提供する。【解決手段】青果物の鮮度保持方法は、青果物の道管を備える部位を擬微小重力環境にて貯蔵する方法である。青果物の道管を備える部位を擬微小重力環境にて貯蔵することにより、青果物の水分損失を抑制し、青果物の鮮度を長期間保ち得る。【選択図】図7