How to Make Fog-Machine Solution

Written by allan robinson
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A fog machine uses a condensed liquid to produce a fog-like vapour. Fog-machine solution, commonly known as "fog juice," is generally too dangerous to mix at home. Fog machines are most commonly used in concerts, nightclubs and plays to create a particular effect. The fog produced can range from a light haze to a thick, rolling fog, depending on the specific ingredients in the fog-machine solution.

Skill level:

Things you need

  • Plastic container
  • Distilled water
  • Glycerine (or ingredients of your choice)
  • Dye (optional)
  • Fragrance (optional)

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  1. 1

    Mix the solution in a plastic container. Fog juice typically consists of distilled water and one or two other ingredients that produce a visible vapour when they condense. Common fog-juice ingredients include glycerine, diethylene glycol, dipropylene glycol and triethylene glycol.

  2. 2

    Make fog that takes a long time to dissipate. A common recipe for fog juice that produces a long-lasting fog uses 30 per cent water, 35 per cent dipropylene glycol and 35 per cent triethylene glycol.

  3. 3

    Mix up a fog that will clear quickly. Typically, this fog juice calls for 40 per cent water and 60 per cent propylene glycol. To make fog juice that dissipates even more quickly, increase the percentage of water in the solution.

  4. 4

    Use glycerine to make a fog juice that produces a haze. A solution containing 15 per cent glycerine will produce a heavy haze; 10 per cent will produce a medium have; and a fog solution of 5 per cent glycerine will produce a light haze.

  5. 5

    Add additional ingredients to create other effects. Fog juice may also include dyes to give it a particular colour or fragrances to provide a specific scent.

Tips and warnings

  • Make sure your fog juice is compatible with your fog machine. Theoretically, fog juice with a higher vapour pressure than the fog machine is designed to handle can cause the heat exchanger to split in half. This not only will destroy the fog machine, but also can cause the overheated fog juice to decompose into toxic vapours.

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