How To Make Metamucil Slime

Metamucil Slime Recipe (aka Vampire Slime)

Please note: This slime is taste safe but should not be considered edible and should not be presented to kids as an edible slime.

We dressed up our Metamucil slime with a set of Mr. Potato Head’s vampire teeth! You could also find those fake waxy vampire teeth that you can put in your mouth or simple plastic ones!

Ingredients:

• 3 teaspoons Metamucil fiber powder {the main ingredient needs to be psyllium husk}
• 3 cups water
• 1 cup measure and 1 tsp measure
• Food coloring (optional)

Instructions:

STEP 1. Add the Metamucil and water to a saucepan and mix together

STEP 2. Add a few drops of red food coloring to make the slime look like blood. Otherwise your Metamucil slime will have an orange hue.

STEP 3. Place on the stove top and bring to a boil. Let boil for 3-5 minutes and then remove from heat and cool for a minute.

Use a spoon to check for consistency. It’s in that cooling time when you really see how the slime consistency forms. It usually takes about 3 rounds of this.

If you find at the 3rd round it still seems loose, set it to the side for a few extra minutes. As it cools it thickens. If you go to far you will burn it {I learned that!}. Stay by your stove as it can boil over {Learned that too}!

ALSO CHECK OUT: Fiber Slime Recipe microwave version

STEP 4. When you are finished cooking your Metamucil slime, let it cool on a plate. Once cooled, store in an air tight container at room temperature for a few weeks or pop in the fridge for longer.

Now, if you have added red food coloring, fingers will be tinged red for a bit. However, I found that the more we played with it, the less red our fingers became.

The consistency of Metamucil slime is much different than our traditional slime play. It’s looser and thinner, but still does not leave hands with a messy feeling. It does not break apart. It feels cool and jiggly in your hands and has a fun wiggly movement!

We decide on a Vampire’s Blood Slime theme since it isn’t as thick as a typical slime.

Get your free printable Halloween slime ideas!

The Science of Metamucil Slime

When you add water and heat to Metamucil powder, it creates a slime-like substance due to the water-absorbing and gel-forming properties of psyllium. Here’s what happens:

1. Water absorption: Psyllium husk, the main ingredient in Metamucil, contains soluble fiber, which absorbs water and swells, forming a gel-like matrix.
2. Gel formation: When heated, the water molecules penetrate the psyllium husk more effectively, causing it to expand and form a thick, gelatinous slime. The soluble fiber in psyllium contains polysaccharides, which interact with water and heat, increasing viscosity and turning the liquid into a slimy, stretchy substance.
3. Viscosity increase: Heat accelerates the gel forming process, making the slime thicker and more elastic. As the psyllium molecules absorb water, they form a network, trapping water and making the mixture slimy.

This process is similar to the way other gelling agents (like gelatin or agar) work, but psyllium’s high fiber content and its ability to form a gel at relatively low concentrations give the slime a unique texture.

Also try our gelatin slime recipe!

More Spooky Halloween Slime To Make

Check out our list of Halloween Slime here, including…

• Hocus Pocus Bubbling Slime
• Halloween Peeps Slime
• Fluffy Witch’s Slime
• Zombie Slime

You can find our favorite slime recipes here and loads of borax free slime recipes to try!

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More Halloween Experiments

Find more fantastic Halloween slime recipes [here] and even more awesome Halloween science experiments [here].

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Printable Halloween Slime Pack