A natural film keeps food fresh for longer and reduces waste.
Now, a startup from San Francisco has developed a private home service-system which converts food waste into nutrient-rich chicken feed.
Using an electrically-operated steel container with a charcoal odour filter, kitchen scraps are dried overnight.
Once the bin is full after a few weeks, users decant it into the boxes provided and arrange their pick-up through the app.
The grounds are then turned into chicken feed and sent out to farms.
The company charges a monthly flat rate for the bin, boxes and shipping. The app, meanwhile, allows users to measure their environmental impact.