[Paul] himself has tried the dry ice in a cooler full of root beer method ... His solution is to use a 60 PSI safety valve. He drilled a hole in a plastic bottle cap to receive the valve.

Keep in mind that you should only use dry ice in rooms with proper ventilation ... Also, the number of times you open your freezer or cooler matters. Every time the door is opened it allows ...

Use gloves or tongs to prevent frostbite. Avoid direct skin contact. Use dry ice in well-ventilated areas to prevent CO2 gas buildup. Store dry ice in an insulated container, not airtight, to avoid ...