Place boards or heavy cardboard on top of packages. Place dry ice on top of boards. In an upright freezer, place ice on each shelf. Cover the freezer with blankets, quilts or some other covering, but do not lock it or cover the air vent openings. It will help to put crumpled newspaper or wood shavings between the freezer and the blankets.
Gas given off by the dry ice needs a place to escape.
Open basement or room windows or doors for ventilation. For more information on emergency preparedness, contact your county Extension office . Cooperative Extension and other agencies of the U.S.D.A. provide equal opportunities in programs and employment. These pages are currently being maintained from the Communications Office, University of Maine Cooperative Extension. No responsibility is assumed for any problems associated with the use of products or services mentioned in this web site.