Technology in the Home Technology is science applied

Technology in the Home Technology is science applied in a practical way. © PDST Home Economics

Technology & Food: n n n Faster – microwave oven Labour saving – food processor Automatic timing - ovens Food kept fresher - fridge freezer Safer – cordless appliances.

Technology and Household Materials n n Easy to clean – ceramic hob Stain resistant – stainless steel. Rust resistant – plastic Washable – paint, wall paper.

Technology and Cleaning and Washing n n Labour saving – better cleaning agents and equipment. Time saving – automatic washing machines and dishwashers

Technology and Textiles/Fabrics n n 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 n TV, DVD, Wii, computer games, Hi Fi, MP 3 players and mobile phones.

Computers in the Home n n n n n 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 n Solid fuel n Oil n Gas n Electricity n Combination

Gas & Electric Cookers - Construction n Enamel – covered steel or stainless steel Consists of hob, grill, single or double oven. Thermostat keeps temperature constant

Hobs n n 4 plates, rings, burners, ceramic. A removable spill tray may be under the hob.

Grills & Ovens n n Eye level In grill compartment In top oven In main oven

OVENS n n n 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 n Dual grill or ring n Double oven n Fan oven Other features n Automatic timer n Ceramic hob n Halogen rings n Self cleaning oven n Split level cooker n Push button ignition on gas oven

Cooker features

Care of the Cooker n n n 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 n n n n n 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 l e a n i n g C o o k e r s

Positioning a cooker n n n 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 n n n 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 n n n n 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 n n n 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 n n n 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 500 mls) 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 n 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