Coke and Milk Experiment (Chemistry)
BeardedScienceGuy BeardedScienceGuy
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 Published On Jul 6, 2017

Get ready for a fantastic and somewhat odd chemistry experiment with the Bearded Science Guy! Today, we're going to witness an intriguing reaction between two household items: coke and milk.

For this chemistry experiment, you'll need a clear glass, some milk (whole or 2% works best), and a can of Coke. This is the Coke and milk experiment, and you won't believe your eyes at the result!

Start by pouring the Coke into your clear glass until it's about three-quarters full. You'll want to leave some room for the milk. Next, add a splash of milk. The amount doesn't have to be precise—a quarter of the glass's volume will do.

Now, here comes the exciting part. After adding the milk, let your glass of Coke and milk sit for a few hours. You will start to see a surprising transformation. The mixture will gradually change color, becoming lighter and more opaque. After a while, you'll notice a precipitate form and settle at the bottom of the glass.

So what's happening in this milk and coke experiment? It's a simple but fascinating chemical reaction. Coke is acidic, and when it encounters the proteins in the milk, it causes them to denature or unravel. These denatured proteins then clump together, forming visible clusters that become the precipitate you see.

But the science doesn't stop there! This reaction is similar to what happens in your stomach when you drink something acidic, like coke. The acid in your stomach can denature proteins in the food you eat, making them easier to break down during digestion.

Remember that this experiment, like all chemistry experiments, should be conducted in a safe environment and preferably with adult supervision for younger scientists.

Enjoy the wonder of science with this strange yet captivating Coke and milk experiment! It's a fun, hands-on way to learn about chemistry and the interactions between different substances. It's proof that sometimes, the most unexpected combinations can lead to the most exciting scientific discoveries! When you mix coke and milk you get a surprising result. The casein protein in the milk reacts with the acids in the coke making them stick together to make clumps that fall out of the solution.

▶️ See the supply list for the Coke and milk experiment: https://www.beardedscienceguy.com/how...

▶️ How to do the Coke and milk experiment:
Step 1: Remove the cap from the cola bottle.

Step 2: Pour in the milk to the very top of the bottle.

Step 3: Replace the cap and observe.

▶️ How the Coke and milk experiment works:
When the casein proteins in the milk are exposed to the acids in Coca-Cola, they start to clump together, plus other molecules in the solution. These clumps can precipitate out of the solution and fall to the bottom. That's why after it sits for about an hour, you get these dark lumps at the bottom and a clear liquid at the top.

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