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.
Bring an ice chest or some other insulated container to hold the Dry Ice and slow the sublimation rate. Dry Ice sublimates faster than regular ice melts but will extend the life of regular ice. 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.