Chemistry

This week I did some chemistry with Katie we are trying to make CASEIN which is stuff that can make: cottage cheese,thickner for stuff that needs firmed and plastic. We are going to get a bit each to keep.

The first time round it didn't work because we didn't have enough, there wasn't enough fat in the milk which you need . The second time it worked when we used more milk and it was blue top not green!

We needed:

2 cups of full milk ( dark blue top)

1 teaspoon of baking soda

1/4 cup of vinegar

medium sized pot

wooden spoon

measuring cup/spoons

small dish

sieve

lid of container to mold CASEIN on

paper towel

Instructions :

1. From the two cups of milk measure out 2-3 table spoons into a small dish. Add 1 teaspoon of baking soda and mix until there were no lumps.

2.Pour the remaining milk / baking soda mixture to your pot.

3.Heat on a low/ medium heat until the mixture starts to simmer you don't want to boil it.

4. Turn the heat off.

5. Add 1/4 Cup of vinegar and mix at the same time / the mixture will start to thicken .

6.Drain the mixture through a sieve until you are left with the lumpy part only.

7.Place the CASEIN mixture onto your mold to set .

8. To remove excess moisture pat with paper towels.

9. Leave to set overnight.

You have made CASEIN a thickner or plastic that's very hard. Make it your self (mind you it does not taste good by its self).