system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
How does a lawnmower's mulching function work?
gpt
A lawnmower with a mulching function operates a bit differently than a traditional mower. While traditional mowers simply cut the grass and collect or discharge the clippings, mulching mowers cut the grass clippings into very small pieces and then discharge them back onto the lawn. The key to this process is a specially designed blade, often called a mulching blade or a 3-in-1 blade (because it's designed to discharge, bag, or mulch). This blade is shaped to keep the clippings aloft inside the mower deck, chopping them repeatedly until they are fine enough to fall through the deck onto the lawn. The finely cut grass clippings then decompose quickly and return nutrients back to the soil.