Microwaving Principles; How Microwaves Cook Food; Conversion Charts - Daewoo KOR-6L5R Operating Instructions & Cook Book

MICROWAVING PRINCIPLES

Microwave energy has been used in this country 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 manmade
sources. Manmade sources include radar, radio, television, telecommunication links and car phones.

HOW MICROWAVES COOK FOOD

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.
Oven Cavity
Magnetron
Waveguide
Turntable
REFLECTION

CONVERSION CHARTS

WEIGHT MEASURES
15 g 1 / oz.
2
25 g 1 oz.
50 g 2 oz.
100 g 4 oz.
175 g 6 oz.
225 g 8 oz.
450 g 1 lb.
FLUID MEASUREMENTS
1 Cup
1 Pint
1 Quart
1 Gallon
In a microwave oven,
electricity is converted
into microwave by the
MAGNETRON.
The microwaves
bounce off the metal
walls and the metal
door screen.
The microwaves cause the water molecules to
vibrate which causes FRICTION, i.e. 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 4-5cm and as heat spreads
through the food by conduction, just as in a traditional
oven, the food cooks from the outside inwards.
VOLUME MEASURES
30 ml
100 ml
150 ml 5 fl.oz. (
300 ml 10 fl.oz. (
600 ml
= 8 fl.oz.
= 16 fl.oz. (UK 20 fl.oz.)
= 32 fl.oz. (UK 40 fl.oz.)
= 128 fl.oz. (UK 160 fl.oz.)
23
TRANSMISSION
Then they pass through the
cooking containers to be
absorbed by the water
molecules in the food, all
foods contain water to a
more or lesser extent.
ABSORPTION
Microwave Water Molecule
SPOON MEASURES
1 fl.oz. 1.25 ml
3 fl.oz. 2.5 ml
1 / pt) 5 ml
4
1
/ pt) 15 ml
2
20 fl.oz. (1pt)
= 240 ml
= 480 ml (UK 560 ml)
= 960 ml (UK 1120 ml)
= 3840 ml (UK 4500 ml)
Absorption Vibration
1 / tsp
4
1
/ tsp
2
1 tsp
1 tbsp