Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?

Organic waste processing

Turning food scraps and garden waste into something useful on the property instead of sending them away. This is the largest part of a household bin by weight. The options differ in what they can take, how fast they work, how much smell and attention they bring, and what they leave behind.

Solutions

• Active compost pile: A heap or bin of kitchen and garden waste, turned now and then so air reaches it. Microbes break the waste down, and the heap gets warm as they work. It turns w
• Bokashi fermentation composting: Anaerobic fermentation in a sealed bin; handles cooked food/meat scraps that open composting struggles with.
• Biochar production (pyrolysis of woody waste): Burning woody waste such as prunings in a closed container with very little air, so it chars instead of turning to ash. What is left is charcoal, called biochar
• Electric kitchen food waste composter/digester: A kitchen appliance that grinds and dries or digests food scraps, including cooked food, meat and dairy. Scraps are cut down in hours, with no smell or pests. I
• Household anaerobic biodigester (biogas + digestate): A sealed tank where food scraps break down without air, helped by bacteria that make methane. It gives two things: gas for a cooker burner, and a liquid fertili
• Vermicomposting (worm bin): A ventilated bin where worms eat kitchen scraps at room temperature. They turn the waste into rich compost, and a tap drains off a liquid plant feed called worm
• Black soldier fly larvae composter: A warm, covered bin where larvae of the black soldier fly eat kitchen scraps, cooked food included, in days rather than months. They cut the waste by 60 to 85%