Page 147 - SK Year 6 Science DLP

FOOD PRESERVATION
FOOD PRESERVATION
PENGAWETAN MAKANAN

The absence of water causes microorganisms
to die or become inactive.
Drying
Drying is the method of removing or getting rid of
most of the water from food. Food can be dried
under the sun or in an oven.

Process of drying
dried fish

dried fish tamarind peel dried vermicelli

When the temperature is below the freezing
point, microorganisms become inactive.

Freezing and
cooling
Freezing is the process
of keeping food at the
freezing point (0°C) or
lower.

Cooling is the process
of keeping food in a
surrounding temperature
below 18°C.

mushroom

Lower temperatures cause
microorganisms to become less active.
They also grow and reproduce at a
corn pack
slower rate.

Cheese manufacturing is one method
Without air, the of preserving fresh milk. What are the
bacteria cannot grow controlling factors that make cheese
and reproduce. lasts longer?
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