Microwave Ovens Microwave Ovens

© PDST Home Economics

Choosing a microwave cooker• Cost / amount of money available /value for money

• Size of family - amount of use

• Quality of appliance / brand name

• Wattage /power or speed of microwave • Safety : safety symbols , child lock

• Easy to use / well designed• Modern features : automatic defrost, grill, oven

• Guarantee

• Colour/stainless steel finish to match other items

Advantages

• Saves time/quick

• Useful in busy households for reheating

• Useful in emergencies – defrost function

• Healthier saves nutrients, no added fat in cooking

• Cheap to run / energy efficient

• Easy to use / no particular cooking skills needed

• Use for sterilisation e.g.. soothers, etc.

Uses

• Cooking

• Reheating

• Defrosting

• Melting

• Sterilising

Using• Follow manufactures instructions• Cover food .Why? Speeds up cooking /prevents drying out

• Turn or stir food during cooking. Why? Ensures even cooking

• Arrange food in a circle, thickest part outwards.

Why? Ensures even cooking

• Use glass, plastic or paper not metal containers.

Why? Metal sparks and breaks the mechanism

Using• Prick foods with a skin before cooking e.g.. tomatoes.

Why? Foods would explode in oven

• Allow standing time if necessary Standing time?

part of the cooking process that happens outside the oven

the centre of the food continues to cook by conduction

ensures that food is fully cooked• Do not switch on when empty. Why? Breaks the mechanism

• Use with small quantities of food rather than large. Why? Ensures food is fully cooked

Cleaning

• Wipe up spills at once

• Unplug before cleaning

• Remove turntable and wash separately

• Wipe out with hot water and detergent and dry

• Don’t use harsh abrasives

• Wash, dry, polish the outside occasionally

The RefrigeratorThe Refrigerator

The Refrigerator

• Metal cabinet with well insulated walls

• Cooling cabinet

• Low Temperatures (2°C - 5°C)

• Controlled by thermostat• Low temperatures slows down the rate at which

bacteria grow preventing food decay

• Work by removing heat from inside the cabinet

Advantages

• Stores food

• Food is protected from dust and flies

• Food stays fresher for longer

• Reduces the risk of food poisoning

• Less leftovers /waste

• Less shopping trips

Choosing a refrigerator

• Cost• Size • Number of people in the house• Colour • With or without freezer• Ease of cleaning• Modern features• Energy efficiency• Defrosting• Quality of appliance / brand name • Guarantee

Using• Keep away from heat source. Why? Puts extra pressure on the motor to reduce the

temperatures inside the fridge• Cover all foods. Why?

To prevent drying out

• Food should be cold going into fridge

• Keep in suitable part of fridge

• Check foods daily for expiry date

Using• Use food in rotation

• Do not pack food too tightly

• Clean out and defrost regularly

• Keep door closed

• Wipe up spills immediately

• Keep raw meat on bottom• Wrap strong smelling foods e.g. onions. Why? To prevent cross flavourings

Cleaning• Unplug first

• Remove all food

• Take out all shelves and removable storage

containers

• Wash with warm water and bread soda

• Rinse and dry

• Replace shelves and food

• Wash and clean the outside

• Plug in again

Star - rating A star rating applies to the storage of frozen foods

One star rating -6˚C storage 1 week

Two star rating -12˚C storage 1

month

Three star rating -18˚C storage 3 months

Four star rating -18˚C to -25˚C storage up to

1yr

Homework

Draw a simple diagram of a fridge and indicate where you would store the following1. two fresh fillets of mackerel2. head of lettuces3. carton of cream4. leftover cooked lamb5. butter6. fresh pork chops7. cheese