Source: Environmental Protection Agency, Published July 09 2012
Tips for beginning home compostersTips for beginning home composters
What to compost:
Coffee grounds and filters
Dryer and vacuum cleaner lint
Fruits and vegetables
Hair and fur
Hay and straw
What NOT to compost:
Black walnut tree leaves or twigs release substances that might be harmful to plants.
Coal or charcoal ash might contain substances harmful to plants.
Eggs and dairy products (like butter, milk, sour cream and yogurt) create odor problems and attract pests such as rodents and flies.
Diseased or insect-ridden plants. The disease or insects might survive and be transferred back to other plants.
Fats, grease, lard or oils create odor problems and attract pests such as rodents and flies.
Meat or fish bones and scraps create odor problems and attract pests such as rodents and flies.
Pet wastes like dog or cat feces and soiled cat litter might contain parasites, bacteria, germs, pathogens, and viruses that are harmful to humans.
Yard trimmings treated with chemical pesticides might kill beneficial composting organisms.