1. Equipment is sterilised to kill off any harmful microorganisms
2. Milk is pasterurised (heated to 72 degrees C for 15 secs) to kill off any microgransims.
3. A started culture of bacteria (Lactobacillus) is added. Then the mixture is incubated in a fermenter.
4. Bacteria ferment lactose sugar in milk to form lactic acid. The lactic acid lowers the PH of the micture
5. The milk protein, casien, coagulates causing the micture to thicken and set.
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