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Scare Tactics – Step-by-Step Guides for Halloween

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(1)The Bubbling Cauldron

Want a real witches’ brew? Mix soap-bubble solution with dry ice, or use liquid nitrogen for bubbles that release fog when they pop. In the video below use the help of a few young assistants to create cauldrons of toil and trouble.

Here’s how it’s done:

There are many ways to make a bubbling cauldron of witch’s brew. As with all magic, some preparation is required for the spell to work properly. The three most practical methods for creating a bubbling cauldron are:

  • 1. Liquid nitrogen
  • 2. Dry ice
  • 3. Mechanical injection of compressed air or, preferably, helium


  • * All magic potions begin with hot water.
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