- Beware of inferior copies from China - GENUINE AUSTRALIAN MADE TECHNIICE REUSABLE DRY ICE PACKS AS USED BY THE DEPARTMENT OF DEFENCE, COLES ONLINE, MEALS ON WHEELS AND MOST GOVERNMENT AND PRIVATE ORGANISATIONS THAT REQUIRE THE BEST POSSIBLE TEMPERATURE RETENTION. Techniice HDR Reusable Dry Ice Packs contains patented FDA Approved Food Grade Polymer. From a Flat Sheet to the World's Best Dry Ice Pack Just Add Water! Each Techniice HDR Dry Ice Sheet comprises of 24 four ply cells (i.e. 2 inner textile sheets which contain the reffrigerant polymer and 2 other high density plastic sheets) which make the product fully washable.