Zusammenfassung der Ressource
Making Yoghurt
- Useful bacteria used to make
- CHEESE
- YOGHURT
- VINEGAR
- COMPOST
- SILAGE
- Main stages of making yoghurt
- 1. Sterilise all equipment
- 2. Milk is pasteurised (heated then cooled)
- 3. Bacterial culture added and incubated
at 47 degrees celcius
- 4. Collect samples and test readiness
- 5. Flavours and colours added ready for packaging
- LACTOBACILLUS is the name given to
the bacteria used to make yoghurt
- How is bacteria used to
make yoghurt?
- Lactobacillus breaks down
lactose in milk.
- These then produce lactic acid, lowering
the pH and making it more acidic
- Lactic acid produced thickens yoghurt - This
is why it is no longer runny
- pH of milk against time
- pH decreases over time