He has been nominated twice for the main Edinburgh Comedy award, winning it on the second occasion. Mark is a TV and radio regular, appearing on nearly all panel shows around; Have I Got News for You, 8 Out of 10 Cats, Would I Lie to You, along with celebrity editions of Mastermind and Pointless.
The shelf life of dry ice depends mainly on how the dry ice is stored and the size of the brick. Dry ice is frozen carbon dioxide, the same gas that we exhale and that plants use for photosynthesis. It is never a liquid, it goes from a -109.3Â°F solid state directly into the gas stage. Because of these properties, dry ice enjoys most of its popularity at Halloween for making a fabulous witch's brew.
It is best not to store Dry Ice in your freezer because your freezer's thermostat will shut off the freezer due to the extreme cold of the Dry Ice! Of course if the freezer is broken, Dry Ice will save all your frozen goods. Commercial shippers of perishables often use dry ice even for non frozen goods. doubt that you can pack enough dry ice into a cooler to keep that much food frozen for a week. I would recommend that you buy cakes of dry ice rather than pellets and take a second cooler filled with dry ice to replenish what evaporates.