Techni Ice Heavy Duty Reusable Dry Ice Pack The 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 are patented internationally and a one of the few ice packs in the world with FDA Approval for safe use with food and perishables (non-toxic). Tips For Using Your Dry Ice Packs Hints for optimum performance of your Techni Ice reusable dry ice packs / gel packs 1. Always use a minimum of 1 sheet per 7-8 liters of cooler size. The more mass of Techni Ice reusable dry ice packs / gel packs the better, and the longer it will last. Techni Ice reusable dry ice packs / gel packs take up less room than regular water ice, and is lighter. 2. Place a sheet or more on top of your food, as cold falls. 3. The colder the food or drinks are when placed into the cooler, the longer Techni Ice reusable dry ice packs / gel packs will keep them that way. 4. Techni Ice reusable dry ice packs / gel packs can also be cut to size, between the individual cells, to fit your application. 5. If you are going away for an extended period, turn your freezer to maximum freeze(approx. -18C) for 3 or 4 days before departing. Unlike water ice, Techni Ice reusable dry ice packs / gel packs being an industrial refrigerant, will maintain temperatures beyond -25C. The lower the temperature Techni Ice reusable...