Dairy Industries

1
Dairy Industries

• Lesson 4 Making cheese

2
Cheese-making

• There are two stages in making cheese
• Adding rennet to milk, which makes the milk
  curdle (clot).
• Adding cheese-making bacteria, which feed on milk
  sugar, multiply and produce acid. This gives the
  cheese its flavour and helps the milk to clot.

3
The effect of rennet

• Rennet clots protein in milk into CURDS.
• If you add rennet to milk, it separates into
  CURDS and a liquid called WHEY.
• The curds are used in cheese-making.

4
Making cheese

• Boil and cool milk, to kill harmful bacteria.
• Add cheese-making bacteria.
• Add rennet
• Separate curds from whey
• Salt and dry curds