Problem to be solved. To provide a technique which can keep freshness of potato for a longer period of time. Solution. A potato freshness keeping packaging container composed of a synthetic resin film, when potato is contained in the potato freshness keeping packaging container, has a water vapor permeating amount per 100 g of the potato at 40 °C, 90%RH of 1.0 g/day atm or more and 3.3 g/day atm or less.

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