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Cooking: Earth friendly Methods. Methods Biodigestors Solar Cookers Clay Ovens.

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Presentation on theme: "Cooking: Earth friendly Methods. Methods Biodigestors Solar Cookers Clay Ovens."— Presentation transcript:

1 Cooking: Earth friendly Methods

2 Methods Biodigestors Solar Cookers Clay Ovens

3 Biodigestors Use waste of livestock for cooking and lighting gas: Pigs, cows, goats Prevents environmental problems of animal waste: water contamination, foul odors, insect breeding Eliminates need for harvesting trees for cooking fuel Eliminates pollution from burning wood Eliminates health risks associates with cooking with wood: respiratory problems, eye damage, burns

4 Biodigestors Most efficient with manure of 4-5 pigs Costs ~$100-200 Fixed dome over ditch lined with plastic. A tube catches and funnels gasses released from the breakdown of the organic materials within. The gas can be used directly to cook or for lighting.

5 Solar Cookers

6 Use direct energy from the sun to cook food Uses mostly local resources to build Takes you off the grid and away from reliance on gas and electric

7 Solar Cookers Basic Construction: Small wooden box lined in metal sheets painted black within a larger frame box. Local organic materials insulating between the boxes. Covered with double pain glass or plexi-glass (select material which allows most sun sun to penetrate) Use mirror or reflective material to direct sunlight into oven. Reaches temperatures of 350- 400 degrees.

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11 Solar Dryers Same concept as cookers, but used for drying herbs, fruits, plants, etc. *Same type of system can be used to heat water

12 Clay Ovens

13 Can be made from many different materials: wooden mold, clay/sand mix, concrete, organic matter, saw dust Costs ~$40 in materials ~$60-80 in labor Fire clay bricks in kiln Cook using wood in back of dome shaped oven


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