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

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

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

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

Technology and Textiles/Fabrics Fabric can be treated to make them easier to clean, iron. 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. Fabric are being invented with the different properties needed for household jobs, waterproof, crease resistant, stronger, fire resistant etc.

Technology and Pastimes TV, DVD, Wii, computer games, Hi Fi, MP3 players and mobile phones. TV, DVD, Wii, computer games, Hi Fi, MP3 players and mobile phones.

Computers in the Home Household budgets - spreadsheets Household budgets - spreadsheets Organise files – databases Organise files – databases Entertainment – games, download music & videos. Entertainment – games, download music & videos. Word processing Word processing Security – alarms, lighting. Security – alarms, lighting. Information – internet Information – internet Working and studying from home Working and studying from home Shopping online Shopping online Banking online Banking online Communicating – and skype. Communicating – and skype.

Cookers Fuelled by Solid fuel Solid fuel Oil Oil Gas Gas Electricity Electricity Combination Combination

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

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

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

OVENS Heated by electric elements or gas burner. Heated by electric elements or gas burner. Well insulated walls to keep heat in. Well insulated walls to keep heat in. Thermostat controls temperature. Thermostat controls temperature. The lining of the oven can be self cleaning or removable for easy cleaning 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. A glass door allows food to be checked without letting heat out.

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

Cooker features

Care of the Cooker Wipe spill immediately Wipe spill immediately Wash grill pan after use. Wash grill pan after use. Wipe out oven after each use and clean regularly Wipe out oven after each use and clean regularly Do not drag saucepans over the hob, it scratches. Do not drag saucepans over the hob, it scratches. Do not use abrasives to clean the hob, ceramic hobs needs ceramic cleaner. Do not use abrasives to clean the hob, ceramic hobs needs ceramic cleaner.

Cleaning a cooker Protect clothes hands and floor. Protect clothes hands and floor. Collect all resources. Collect all resources. Switch off electricity or gas Switch off electricity or gas Remove all removable parts and steep in warm water and detergent. Remove all removable parts and steep in warm water and detergent. Spray or rub on oven cleaner Spray or rub on oven cleaner Wash removable part in hot soapy water, rinse and dry. Wash removable part in hot soapy water, rinse and dry. Wash out oven rinse and dry Wash out oven rinse and dry Wash, rinse and dry outside of cooker and replace all parts Wash, rinse and dry outside of cooker and replace all parts Polish chrome and outside with a multipurpose silicone polish e.g. Mr Sheen Polish chrome and outside with a multipurpose silicone polish e.g. Mr Sheen

Cleaning CookersCleaning CookersCleaning CookersCleaning Cookers

Positioning a cooker Near gas or electric connection. Near gas or electric connection. In the work triangle. In the work triangle. Away from draughts (gas) Away from draughts (gas) Not at end of line of cooker worktop both sides ideal. Not at end of line of cooker worktop both sides ideal. Do not place beside fridge Do not place beside fridge

The Refrigerator Metal cooling cabinet with well insulate walls. 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 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 Fridges can be standard (with icebox), larder (no icebox) or fridge –freezer, with a freezing compartment

Advantages of a Fridge Perishables stay fresh longer. Perishables stay fresh longer. Protects food from dust & flies. Protects food from dust & flies. Risk of food poisoning reduced Risk of food poisoning reduced Less waste, leftovers. Less waste, leftovers. Shopping trips reduced Shopping trips reduced Frozen food can be stored in ice-box Frozen food can be stored in ice-box Food can be frozen in a Fridge - freezer Food can be frozen in a Fridge - freezer

Care/ Use Position away from heat Position away from heat Cool food before storing in fridge Cool food before storing in fridge Clean fruit & veg before storing Clean fruit & veg before storing Cover all food to prevent drying. Cover all food to prevent drying. Store foods on plates to catch drips Store foods on plates to catch drips Wrap strong smelling food Wrap strong smelling food Store foods in suitable part of fridge Store foods in suitable part of fridge Do not over pack shelves Do not over pack shelves Open door as little as possible Open door as little as possible Defrost regularly if not frost free Defrost regularly if not frost free If unplugged leave door open If unplugged leave door open Check foods daily. Check foods daily.

Defrosting Removal of ice from around ice-box Removal of ice from around ice-box Necessary if fridge is to be efficient Necessary if fridge is to be efficient Manual Manual Unplug Unplug Wrap frozen food in newspaper Wrap frozen food in newspaper Wait till ice melts, empty drip tray Wait till ice melts, empty drip tray Bring removable parts to sink wash rinse & dry Bring removable parts to sink wash rinse & dry Wash out inside and ice box with warm water + bread soda (1 tablesp to 500mls) Wash out inside and ice box with warm water + bread soda (1 tablesp to 500mls) Replace all parts, replace food, switch fridge back on. Replace all parts, replace food, switch fridge back on. Wash rinse and dry outside of fridge Wash rinse and dry outside of fridge Dust condenser Dust condenser Polish outside with silicon polish. Polish outside with silicon polish.

Star rating The ice box on a standard fridge has a star rating. 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 *** Three stars -18 ºC Stores frozen foods for 3 months **** Four stars -18 ºC -25 ºC Stores frozen food 1 year Freezes fresh food