Technology in the
Home
Technology is
science
applied in a
practical way.
©
PDST Home Economics
Technology & Food:
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Faster – microwave oven
Labour saving – food processor
Automatic timing - ovens
Food kept fresher - fridge
freezer
Safer – cordless appliances.
Technology and Household Materials
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Easy to clean – ceramic hob
Stain resistant – stainless steel.
Rust resistant – plastic
Washable – paint, wall paper.
Technology and Cleaning and Washing
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Labour saving – better cleaning agents and
equipment.
Time saving – automatic washing machines and
dishwashers
Technology and Textiles/Fabrics
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Fabric can be treated to make them easier to
clean, iron.
Fabric are being invented with the different
properties needed for household jobs,
waterproof, crease resistant, stronger, fire
resistant etc.
Technology and Pastimes
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TV, DVD, Wii, computer games, Hi Fi, MP3
players and mobile phones.
Computers in the Home
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Household budgets spreadsheets
Organise files – databases
Entertainment – games,
download music & videos.
Word processing
Security – alarms, lighting.
Information – internet
Working and studying from
home
Shopping online
Banking online
Communicating – email and
skype.
Cookers
Fuelled by
 Solid fuel
 Oil
 Gas
 Electricity
 Combination
Gas & Electric Cookers - Construction
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Enamel – covered steel or stainless steel
Consists of hob, grill, single or double
oven.
Thermostat keeps temperature
constant
Hobs
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4 plates, rings, burners, ceramic.
A removable spill tray may be under the
hob.
Grills & Ovens
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Eye level
In grill compartment
In top oven
In main oven
OVENS
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Heated by electric elements or gas
burner.
Well insulated walls to keep heat in.
Thermostat controls temperature.
The lining of the oven can be self
cleaning or removable for easy cleaning
A glass door allows food to be checked
without letting heat out.
Modern Features
Economy features
 Dual grill or ring
 Double oven
 Fan oven
Other features
 Automatic timer
 Ceramic hob
 Halogen rings
 Self cleaning oven
 Split level cooker
 Push button ignition
on gas oven
Cooker features
Care of the Cooker
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Wipe spill immediately
Wash grill pan after use.
Wipe out oven after each use and clean
regularly
Do not drag saucepans over the hob, it
scratches.
Do not use abrasives to clean the hob,
ceramic hobs needs ceramic cleaner.
Cleaning a cooker
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Protect clothes hands and floor.
Collect all resources.
Switch off electricity or gas
Remove all removable parts and steep in warm
water and detergent.
Spray or rub on oven cleaner
Wash removable part in hot soapy water,
rinse and dry.
Wash out oven rinse and dry
Wash, rinse and dry outside of cooker and
replace all parts
Polish chrome and outside with a multipurpose
silicone polish e.g. Mr Sheen
C
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Positioning a cooker
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Near gas or electric connection.
In the work triangle.
Away from draughts (gas)
Not at end of line of cooker worktop
both sides ideal.
Do not place beside fridge
The Refrigerator
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Metal cooling cabinet with well insulate
walls.
The cool temp (1 - 4ºC) slows down the
growth of bacteria and therefore the
food stays fresh longer
Fridges can be standard (with icebox),
larder (no icebox) or fridge –freezer,
with a freezing compartment
Advantages of a
Fridge
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Perishables stay fresh longer.
Protects food from dust & flies.
Risk of food poisoning reduced
Less waste, leftovers.
Shopping trips reduced
Frozen food can be stored in ice-box
Food can be frozen in a Fridge - freezer
Care/ Use
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Position away from heat
Cool food before storing in fridge
Clean fruit & veg before storing
Cover all food to prevent drying.
Store foods on plates to catch drips
Wrap strong smelling food
Store foods in suitable part of fridge
Do not over pack shelves
Open door as little as possible
Defrost regularly if not frost free
If unplugged leave door open
Check foods daily.
Defrosting
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Removal of ice from around ice-box
Necessary if fridge is to be efficient
Manual
Unplug
Wrap frozen food in newspaper
Wait till ice melts, empty drip tray
Bring removable parts to sink wash rinse & dry
Wash out inside and ice box with warm water + bread
soda (1 tablesp to 500mls)
Replace all parts, replace food, switch fridge back on.
Wash rinse and dry outside of fridge
Dust condenser
Polish outside with silicon polish.
Star rating
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The ice box on a standard fridge has a star
rating.
*
One star
-6 ºC
Stores frozen food for 1
week
**
Two stars
-12 ºC
Stores frozen food for 1
month
***
-18 ºC
Three stars
Stores frozen foods for 3
months
****
Four stars
Stores frozen food 1 year
Freezes fresh food
-18 ºC
-25 ºC