a salty water absorbing composition , salty water ice packs , and salty water absorbing packs used to preserve freshness of meat , fresh fish and shells , vegetables and other watery food when they are transported over a long distance . the salty water absorbing composition and packs containing the composition absorb drippings or exudation discharged from such food , in particular the salty drippings , which ooze from the fresh fish and shells and other marine products . the salty water absorbing pack containing antibiotic materials is accommodated in a bag made of paper sheet coated with a perforated polymer to construct a salty water absorbing pack . the salty water ice pack is obtained by absorbing the pack with salty water and freezing .