Compost or Grind: What’s The Difference?

Learn the differences and advantages.

There’s no doubt that composting is an environmentally responsible way to dispose of food waste. When you put food and organic matter back into the ground, microorganisms eat and recycle the waste. This process produces a rich, organic fertilizer.

Composting is a great practice whenever possible, but it can often be a challenge—especially for those who live in urban areas or apartment buildings.


There are also a number of food waste items you should never compost. Like bread products, including cakes and pasta; meat products; including bones and fish; and milk products. These items attract unwelcome animals.

Other items could actually harm soil and plant growth. These items include walnuts, which contain an organic compound that is toxic to some plants, and rice, which when cooked can become a breeding ground for harmful bacteria.

However, you can responsibly get rid of all of these items and more with your InSinkErator® food waste disposer. Food waste is composed of roughly 70 percent water already, so sending it down the drain to a waste water treatment plant makes sense.


Once it arrives at the waste water treatment plant, the same microorganisms in the ground eat the food waste. They produce the same fertilizer and methane gas.

Methane is a greenhouse gas at least 21 times more harmful to the environment than carbon dioxide. In a landfill, decomposing items emit methane gas that becomes a major contributor to global warming. In a waste water treatment plant, the methane gas can be captured and turned into renewable energy that can power the plant, itself.

The fertilizer from a waste water treatment plant can be used to grow new food, which you can compost or toss down the food waste disposer once you’re finished with it.

Watch this video to learn more.