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How To Make Metamucil Flubber

Make Edible Metamucil Flubber


Flubber is a non-sticky and non-toxic type of slime.

Flubber is a non-sticky and non-toxic type of slime.

Anne Helmenstine

This recipe makes the non-sticky sort of 'rubber' or gelatinous slime that is known as flubber.

Difficulty: Average

Time Required: 15 minutes

Here's How:

  1. Mix 1 teaspoon of Metamucil with 1 cup (8 ounces) of water in a microwaveable bowl. You can add a drop or two of food coloring if you wish. Alternatively, you could add a little powdered drink mix or flavored gelatin to get color/flavor.
  2. Place bowl in the microwave and nuke on high for 4-5 minutes (actual time depends on microwave power) or until the goo is about to bubble out of the bowl. Turn off the microwave.
  3. Let the mixture cool slightly, then repeat step 3 (microwave until about to overflow). The more times this step is repeated the more rubbery the substance will become.
  4. After 5-6 microwave runs, (carefully - hot hot HOT) pour the flubber onto a plate or cookie sheet. A spoon can be used to spread it out.
  5. Allow to cool. There you have it! Non-stick flubber. A knife or cookie cutters may be used to cut the flubber into interesting shapes.
  6. Flubber can be stored at room temperature in a sealed baggie for several months. It will last indefinitely in a sealed bag in the refrigerator.


  1. If the flubber is sticky then the amount of water needs to be reduced. It should be clammy, but not sticky. Use less water next time.
  2. Please use adult supervision. Molten fluids and microwaves are involved!

What You Need:

  • 1 tsp Metamucil or similar soluble fiber
  • 8 oz water
  • microwave-safe bowl
  • microwave oven
  • food coloring (optional)

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