Why use worms to compost.
In the UK it's estimated that households throw away about a third of the food they buy. Around half of the 6.7 million tonnes of food thrown in the bin each year is edible and the rest comprises waste such as veg peelings and food scraps.
All this waste then gets transported to landfill sites around the UK. These sites are nearly full and account for a large percentage of the greenhouse gasses that pollute our atmosphere.
Even if they centrally compost the waste it is still a huge waste to transport waste and compost back and forth from people's houses back to their gardens. Worms are efficient at turning all organic material into a valuable soil fertiliser called vermicompost.