Sep 14, 2020 · Whirlpool’s Zera Food Recycler, though, actually is a legit kitchen composter. It’s more complex than a small bucket, but in exchange for the extra cost and space, you get a device that actually does the composting for you. In 24 hours, it turns your food scraps into usable fertilizer. It does come with a hefty price tag, though: $1,199.