1. Add 20cmcubed of milk to beaker
2. Add 5cmcubed of bile salts using measuring cylinder
4. Add 10cmcubed of sodium carbonate
5. Add 10 drops of phenolphthalein to beaker, it should be pink
6. Put in water bath and stir, leave for 5 mins
7. Add 5cmcubed of lipase solution and start stopwatch
8. Stir contents until loses pink colour. Stop stopwatch
9. Record how long it took. Repeat x2
10. Repeat at different temperatures