Turn milk into plastic!!

Experiments Science Facts

Turn milk into plastic!!

Required Materials ?

1 cup whole milk
4 Tbsp. white vinegar
Small saucepan
1 large mug
3-4 paper towels
Food coloring, beads, glitter (optional)
Cookie cutter (optional)

Step One: Choose Your Design

you and your kids are encouraged to make any decorative item you desire, such as ornaments or keepsakes. Feel free to double the recipe and make larger objects. Embellish with beads or glitter, too!

Step Two: Make Casein Plastic
Warm up the milk in a small saucepan. Do not bring to a boil. While you’re waiting for your milk to heat, add the vinegar to your large mug. If doubling the recipe, think about upgrading from a mug to a mixing bowl. Once the milk is only just starting to bubble, remove it from the heat and add it to your mug of vinegar. Right away, you’ll notice curdling, but allow your mug to cool for 3-5 minutes before handling.

Step Three: Mold Your Object
With a spoon, do your best to separate the milk solids from the liquid and transfer to a paper towel. Knead for about a minute before adding your color and decorations. Continue to knead, gently pressing what is now a dough against your paper towel so as to let out as much liquid as possible. When your dough is dry enough, it should resemble a play-dough type consistency. Shape it however you want.