Abstract: A freshness-keeping device comprising an adsorbent absorbed with a freshness-keeping liquid, and a film cover made of a material having a high impermeability to gas of the freshness-keeping liquid, which has larger dimensions than the adsorbent to cover the adsorbent from the outside, wherein the cover has a skirt portion extending in a lateral direction of the adsorbent and a dispersing opening is formed at the skirt portion to permit the freshness-keeping liquid to gradually disperse outwardly from the adsorbent, wherein a layer having a function of adsorbing and diffusing a liquid adhered to the surface of the film into the inside, is provided on both or one of the surfaces in contact with the adsorbent, of the upper and lower films constituting the skirt portions.

Abstract: An adsorbent (2) is sandwiched by two films (4) from upper and lower directions; the two films (4) are bonded to upper and lower surfaces of the adsorbent (2). A skirt portion (4A) extending in a lateral direction of the adsorbent (2) is formed in an outer periphery of each of the films (4) and dispersing openings (8) are formed between the skirt portions (4A). Then, a freshness-keeping liquid impregnated in the adsorbent (2) is gradually dispersed outside from each side portion (2A) of the adsorbent (2) through the dispersing opening (8), whereby the adsorbent (2) in the freshness-keeping device (1) is prevented from contacting directly food and the freshness of the food can be kept stably in a long period of time.