How to make a Smelly Jelly Air Freshener

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Things You'll Need

  • Measuring spoons
  • Non-metal spoons
  • Glass measuring cup
  • 8 oz. glass jar with lid
  • 6 oz. distilled water
  • 1 tsp. Smelly Jelly crystals
  • Food coloring
  • 1 tsp. fragrance oil

Smelly Jelly air fresheners are a great craft project for anyone who enjoys a little aromatherapy. They can be made in a variety of long-lasting scents and colors. The Smelly Jelly air freshener jars can be attractively customized for any occasion. Smelly Jellies don't require burning so they are ideal for all spaces including homes, offices and cars.

How to Make a Smelly Jelly Air Freshener

New or used glass jars can be used to make Smelly Jelly air fresheners.
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Wash and dry the glass jar. It does not need to be new, but it must be clean.

Pour 6 oz. of water into the glass jar and add 1 tsp. of the gel crystals. Stir the crystals several times in the jar with the non-metal spoon.

Add the food coloring. One to two drops may be used for a lighter color and subsequent drops can be added until the desired color is achieved. Stir the food coloring several times in the jar with the non-metal spoon. (Ref. 2)

Add 1 tsp. of the fragrance oil and stir with the non-metal spoon until thoroughly mixed. If a heavier fragrance is desired, an extra teaspoon may be added.

Allow the Smelly Jelly to sit, uncovered, for approximately one hour so the gel crystals can absorb the liquid. A lid may be placed on the jar after an hour if the Smelly Jelly is a gift or the jar may be used immediately by leaving it uncovered.


  • One teaspoon of alcohol (rubbing, Everclear, gin or vodka) can be added to the Smelly Jelly once every three months to prevent molding.

    Gel crystals can be re-used approximately four times. Simply add 3/4 cup of water to the dry crystals and reapply the fragrance oil.


  • Never empty gel crystals down a drain. The crystals absorb water and will cause damage to the drainage system.