Taste-Safe Chia Seed Slime

Published: May 12, 2023 · Updated: February 13, 2024 by Sacha — This post may contain affiliate links. Read our full disclosure.

Looking for an easy slime recipe to allow your toddler to join in on the fun? This taste-safe chia seed slime calls for just 3 edible ingredients! Homemade chia slime provides a fabulous sensory experience for kids, and it couldn’t be simpler to make.

Slime wasn’t around when I was a child, but I’m definitely glad that I decided to give it a try. I recently made three batches of slime for my daughter’s seventh birthday and it was a HUGE hit with all of her friends!

Because all the kids she invited were six to seven years old, the recipes I used for the birthday party were more “traditional” glue-based ones. But just because your kids are too young for glue-based slime doesn’t mean they shouldn’t get to join in on the fun!

If you have a baby or toddler at home, there are lots of baby-safe slime recipes you can use… including this DIY chia slime recipe.

While it’s not meant to be eaten as a snack, this taste-safe slime recipe is made from 3 edible ingredients, making it perfect for kids who still like to put everything in their mouths. Even our older kids had lots of fun playing with it!

(P.S. Looking for more taste-safe sensory activities? Check out this list of 25 Taste-Safe Sensory Play Ideas for kids!)

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Required Ingredients

Here’s what you’ll need to whip up a batch of taste-safe chia slime at home:

Ingredients to make chia seed slime.
  • ¼ cup chia seeds (white or regular)
  • 1 ¾ cups water
  • Food coloring
  • 3-3 ½ cups cornstarch (you may know it as “corn flour” if you live in the U.K. or Australia)

Note: This recipe will work with both regular chia seeds and white chia seeds, but I chose to use white chia seeds because I wanted the color of the slime to be nice and vibrant, and the white chia seeds blended in nicely with the cornstarch.

How to Make Edible Chia Seed Slime for Kids (Step-by-Step)

1. Combine Chia Seeds & Water

Start by measuring out ¼ cup of chia seeds and pouring them into a medium-sized container.

The chia seeds will need to soak up water for several hours, so I recommend using a container with a lid that you can place in your refrigerator. To avoid having to switch containers, I also recommend using a larger container that will be able to accommodate the added cornstarch once the chia seeds are done soaking.

When you have measured out the chia seeds, add 1 ¾ cups of water and stir with a spoon until combined. The chia seeds will likely float up to the top.

Container with chia seeds and water.

2. Add Food Coloring

Add some food coloring and stir with a spoon until the color is visible throughout.

You’ll be adding lots of cornstarch during later steps, so if you want the color to be nice and vibrant, you’ll need to use quite a lot. I used about 8-10 drops of pink and 8-10 drops of purple, but I could have achieved an even brighter color if I had added more.

Container with chia seeds, water and food colouring.

3. Let Soak

Close the container and place it in the fridge for a few hours (ideally overnight) to allow the chia seeds to fully absorb the water. This will cause them to “gel” and develop a slimy texture that is perfect for sensory play!

Container filled with purple chia seeds.

4. Add Cornstarch

When the chia seeds are done soaking (we left ours in the fridge overnight to give allow them to get as slimy as possible), it’s time to add the cornstarch.

You’ll be adding about 3 to 3 ½ cups in total, but to make things easier, I did this in small batches. I recommend that you do the same.

Start by adding 1 cup of cornstarch and stirring it in with a spoon. The color will get a lot lighter, so feel free to add more food coloring if you want your chia slime to look really vibrant—it should still be fairly easy to incorporate at this stage, but it will be a lot more difficult to add in later on.

Container filled with purple chia seeds and cornstarch.

When the first cup of cornstarch has been fully incorporated, add a second cup of cornstarch and stir that in as well. You should be able to keep using a spoon, but it will be more difficult. (Warning: This step can get a little messy, so make sure you’re prepared for that.)

The next cup of cornstarch should be added in two ½ cup increments. You may need to start mixing it in with your hands, as the thicker the mixture gets, the more difficult it will be to stir with a spoon.

5. Adjust Slime Consistency

Once you have added 3 cups of cornstarch, evaluate the texture before deciding if you’d like to add more.

The texture will be pretty goopy at this point and similar to oobleck—which may be what your child prefers. If that’s the case, feel free to stop adding cornstarch and turn this activity into an edible sludge sensory bin.

Container filled with purple chia seed slime.

If you’d prefer a more “solid” consistency that doesn’t stick to your hands as much and behaves more like traditional slime, you can slowly add more cornstarch, a couple tablespoons at a time, until you achieve the right texture. (You can add a bit more water if you overdo it.)

You’ll definitely need to knead it in with your hands as it will be too thick to stir with a spoon.

Once you’re happy with the texture, it’s time to play! My almost-four-year-old, my five-year-old and my seven-year-old all had a blast with this chia seed sensory slime.

Hand holding oozing purple slime.

My seven-year-old seemed to prefer a “wetter” texture and enjoyed dunking her whole hand in the sensory bin and watching as the slime oozed down when she lifted it up.

My almost-four-year-old liked pouring the slime into different bowls and containers, and using it to make “pancakes” on little plastic plates.

My five-year-old used little spoons to pick it up and watch it drip back down into the sensory bin.

This activity definitely qualified as messy play, but it kept all of them entertained for quite a while, so I consider it a success. We’ll definitely be making it again!

Hand holding oozing purple slime.

How to Store Homemade Chia Seed Slime

How long does chia seed slime last? As it turns out, you can actually get several uses out of it if you play your cards right!

When we were done playing for the day, I poured the remaining slime back into the container and left it in the fridge overnight. The next afternoon, when I took it back out, it had solidified and no longer had a “slime-like” consistency… but after I added some water and kneaded it in with my hands, we were able to play with it again!

The process of kneading in the water was a little tedious, and I kept having to break off pieces of the slime in order to allow the water to seep in. To be honest, I wasn’t entirely sure it would work. But it turned out to be totally worth it, because once it was done, the slime had the exact right consistency.

This means that as long as you keep it clean, store it in the fridge and rehydrate it before play, you should be able to reuse this one multiple times instead of throwing it out after one use!

Hand holding oozing purple slime.

Edible Chia Seed Slime

Looking for an easy slime recipe to allow your toddler to join in on the fun? This taste-safe chia seed slime calls for just 3 edible ingredients!
No ratings yet
Prep Time 10 minutes
Cook Time 0 minutes
Resting Time 4 hours
Total Time 4 hours 10 minutes
Course Slime
Cuisine American


  • ¼ cup chia seeds white or regular
  • 1 ¾ cups water
  • food coloring as needed
  • 3 – 3 ½ cups cornstarch


  • Pour chia seeds into a bowl or container.
  • Add water and mix with a spoon.
  • Add 10-20 drops of food coloring and mix some more, until the color is visible throughout.
  • Cover the bowl or container and place it in the fridge. Let the chia seeds soak for 3-4 hours or overnight, until they develop a thick, slimy texture.
  • Add 1 cup of cornstarch and stir with a spoon until fully incorporated. Repeat with a second cup of cornstarch. Add an additional ½ cup of cornstarch and knead the slime with your hands until fully combined, then repeat with another ½ cup of cornstarch.
  • If you are satisfied with the texture of the slime, give it to your child to play with. If not, add a couple more tablespoons of cornstarch at a time, kneading with your hands, until you are happy with the texture. Use immediately.


Slime can be stored in a container in the fridge for up to 5 days when not in use. In order to reuse the slime, you will need to add more water and work it in with your hands.
Have you tried this?Mention @thecraftathomefamily or tag #thecraftathomefamily to let us know how it went!

Related Taste-Safe Slime Recipes

Are you looking for more safe slime recipes that are suitable for babies and toddlers? Check out these articles:

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