A cute compost device, a sleek bidet, a water filter pitcher (that’s not Brita), and more. For Sarah Paiji Yoo, cofounder of Blueland, creating a line of eco-conscious and refillable cleaning products ...

The promise is simple. A small backyard setup is supposed to transform all sorts of kitchen waste into a nutrient-dense compost, a material so prized by gardeners that they gave it the nickname “black ...