Electric Composter

Electric composters like the NatureMill promise to make the process completely hassle-free. The NatureMill uses 5 kilowatt-hours a month—about as much as running a room air conditioner for five hours—which the company claims is less than a diesel-burning garbage truck would use to haul away the same trash. As an added bonus, the machine can apparently handle meat and dairy, which are verboten in most home compost systems. The major downsides: The unit is pricey—$299 for the cheapest model—which can be hard to swallow when even a relatively fancy, ready-made worm bin costs about $75, plus worms.

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