What would happen if you drink cola and milk at the same time? Cola and Milk Experiment

This Milk and Milk Experiment is going to teach you never to drink cola and milk at the same time. Let’s have a look at what will happen when you put cola and milk together. I am sure you will be shocked.

Age: 3+         Time: <10min

 Safety 

1. Do not drink cola in this experiment.

2. Adult supervision.

 Materials List 

• A bottle of cola
• Milk

 Instruction 

Step 1/2 – Pour about 50ml milk into a bottle of cola and screw the lid back on.

Step 2/2 – Wait for 24 hours, You'll see that the Cola turned into clear and black color was gone.

 Troubleshooting 

Why my cola did not become clear?

— Make sure you wait long enough and add enough milk.

 Question to Ask 

1. Why is cola black?

2. Is there anything else that can make cola become clear?

3. Where the milk is gone and what is the sediment under the bottle?

 Scientific Description 

Apart from sugar and water, the cola is rich in Phosphoric Acid which reacts with milk. Phosphoric Acid molecules attach to the protein Casein in the milk and the calcium so it becomes denser so that it separates out. The left liquid that makes up the milk and cola being lighter floats on top. Cola contains a caramel colorant that is what makes the cola black and that adheres to the curdled proteins so the black color goes with the proteins down in the bottom. The solid stuff is basically milk been curdled by the extra acidity soda. You will have the same effect when the milk is added to anything acidic like lemons, orange, grape and etc.

 Extensions 

You filter out the sediment and have a special cola but always bear in mind that Never drink this cola.