• Worm bin: We may be losing our Biostack, but we'll be welcoming some new friends into our lives – worms! Maria Finn's How To Start a Home Worm Composting System is full of tips for assembling a container, ordering worms, and managing the process. We'll probably keep our small (light-proof) worm bin on the balcony, but they can also be hidden away under the sink or in a closet.
• Bokashi: We were utterly amazed the first time we saw Abby's Bokashi composter in her kitchen. Unobtrusive and odorless, it takes pretty much anything (even meat and dairy) and converts it into soil in 7-10 days. It works by using microbes, which ferment the kitchen waste rather than letting it putrefy like most composting systems.
• NatureMill: Designed for indoor use, the NatureMill has a built-in mixer and aerator so it's pretty much hands-off. Like the Bokashi, it also takes about a week to process scraps into soil. We aren't enamored of the fact that it requires electricity to operate, but we do appreciate that it simplifies composting for apartment and city dwellers.
Do you compost in a small space? What method do you use?