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CONVERSION CHARTS
MICROWAVING PRINCIPLES
Microwave energy has been used to cook and reheat food since early experiments with RADAR in World War ll.
Microwaves are present in the atmosphere all the time, both naturally and by man made sources. Man made
sources include radar, radio, television, telecommunication links and mobile devices.
HOW MICROWAVES COOK FOOD
The microwave oven is a Group 2 ISM equipment in which radio frequency energy is intentionally generated
and used in the form of electromagnetic radiation for the treatment of material. This oven is a Class B
equipment suitable for use in domestic establishments and in establishments directly connected to a low
voltage power supply network which supplies buildings used for domestic purposes.
Then microwave energy
passes through the
cooking container to be
absorbed by water
molecules in the food. All
foods contain water.
In a microwave oven,
electricity is converted
into microwave by the
MAGNETRON ENERGY.
The microwave energy
bounces off the metal
walls and the metal door
screen of the oven.
Oven Cavity
Magnetron
Waveguide
Turntable
REFLECTION
TRANSMISSION
ABSORPTION
Microwave
Water Molecule Absorption
Vibration
Microwave energy causes the water molecules to
vibrate which causes FRICTION resulting in HEAT.
This heat then cooks the food. Microwaves are
also attracted to fat and sugar particles and foods
high in these will cook more quickly. Microwaves
can only penetrate to a depth of 1
1
/
2
- 2 inches
(4-5cm) and as heat spreads through the food by
conduction, just as in a traditional oven, the food
cooks from the outside inwards.
WEIGHT MEASURES
15 g
½ oz.
25 g
1 oz.
50 g
2 oz.
100 g
4 oz.
175 g
6 oz.
225 g
8 oz.
450 g
1 g.
VOLUME MEASURES
30 ml
1 fl.oz.
100 ml
3 fl.oz.
150 ml
5 fl.oz. (¼ pt)
300 ml
10 fl.oz. (½ pt)
600 ml
20 fl.oz. (1pt)
SPOON MEASURES
1.25 ml
¼ tsp
2.5 ml
½ tsp
5 ml
1 tsp
15 ml
1 tbsp
FLUID MEASUREMENTS
1 Cup
= 8 fl.oz.
= 240 ml
1 Pint
= 16 fl.oz. (UK 20 fl.oz.)
= 480 ml (UK 560 ml)
1 Quart
= 32 fl.oz. (UK 40 fl.oz.)
= 960 ml (UK 1120 ml)
1 Gallon
= 128 fl.oz. (UK 160 fl.oz.)
= 3840 ml (UK 4500 ml)
DESUK_KOM-9P2CBS(영)_A5.indd 18
2017. 7. 10. 오후 5:22
In a microwave oven, electricity is converted into
microwave energy by the magnetron.
The microwave energy bounces off the metal
walls and the metal door screen of the oven.
Microwave energy passes through the cooking
container to be absorbed by water molecules in
the food. All foods contain water.
Microwave energy causes the water molecules
to vibrate which causes FRICTION resulting in
HEAT. This heat then cooks the food. Microwaves
are also attracted to fat and sugar particles
and foods high in these will cook more quickly.
Microwaves can only penetrate to a depth of 1½ -
2 inches (4-5cm) and as heat spreads through the
food by conduction, just as in a traditional oven,
the food cooks from the outside inwards.
