Use common kitchen materials to make your own glue. Add vinegar to milk, separate the curds, and add baking soda and water. Glue!
Time Required: 15 minutes
- Mix 1/4 cup hot tap water with 2 T powdered milk. Stir until dissolved.
- Stir 1 T of vinegar into the mixture. The milk will begin to separate into solid curds and watery whey. Continue stirring until the milk is well-separated.
- Pour the curds and whey into a coffee filter positioned over a cup. Slowly lift the filter, draining the whey. Keep the curd, which is in the filter.
- Squeeze the filter to remove as much liquid as possible from the curd. Discard the whey (i.e., pour it down a drain) and return the curd to a cup.
- Use a spoon to break the curd into small pieces.
- Add 1 teaspoon hot water and 1/8 to 1/4 teaspoon baking soda to the chopped curd. Some foaming may occur (carbon dioxide gas from reaction of baking soda with vinegar).
- Mix thoroughly until the glue becomes smooth and more liquid. If the mixture is too thick, add a bit more water. If the glue is too lumpy, add more baking soda.
- The finished glue can vary in consistency from a thick liquid to a thick paste, depending on how much water has been added, how much curd was present, and how much baking soda was added.
- Use your glue as you would any school paste. Have fun!
- When not in use, cover your cup of glue with plastic wrap. Over time, its consistency will become smoother and more clear.
- Unrefrigerated glue will 'spoil' after 24-48 hours. Discard the glue when it develops a spoiled milk smell.
- The separation of curds and whey works best when the milk is warm or hot (which is why powdered milk is used).
- If the separation doesn't work well, heat the milk or add a bit more vinegar. If it still doesn't work, start again with warmer water.
- Clean dried glue by loosening/dissolving it in warm water and wiping it away. Glue will wash out of clothes and off surfaces.
What You Need:
- 1/4 cup hot water
- 1 T vinegar
- 2 T powdered dry milk
- 1/2 tsp baking soda