12 small pieces of dry ice are put in my cauldron just before I bring it on stage. The two medium bottles I pour into the cauldron are filled with ordinary tap water - the dry ice creates billows of carbon dioxide gas when submerged in water. Our crew experimented with different amounts of water and dry ice and came up with the right amounts to use so that it would create enough smoke over the right period of time, but be safe for a layperson without gloves (like me) to use on stage.
Last year when we performed Iolanthe, we used too much dry ice one night as part of our fog special effect (we had a real fog machine powered by dry ice) and set off the fire alarm just before the finale! Ever since then we've had to be very careful with how much we use.
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12 small pieces of dry ice are put in my cauldron just before I bring it on stage. The two medium bottles I pour into the cauldron are filled with ordinary tap water - the dry ice creates billows of carbon dioxide gas when submerged in water. Our crew experimented with different amounts of water and dry ice and came up with the right amounts to use so that it would create enough smoke over the right period of time, but be safe for a layperson without gloves (like me) to use on stage.
Last year when we performed Iolanthe, we used too much dry ice one night as part of our fog special effect (we had a real fog machine powered by dry ice) and set off the fire alarm just before the finale! Ever since then we've had to be very careful with how much we use.
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