Food Waste

Food waste graphic

Where do your leftovers go?

All food waste from Yale College dining halls and Yale Hospitality retail spaces is processed at an anaerobic digestion facility in Southington, Connecticut that captures resulting methane gas to use as an energy source. Leftovers from the process are used to make organic soil amendments and compost blends.

The university currently does not have capacity to offer compost service to non-dining spaces. We are working toward being able to offer compost services to a broader range of campus events.

Acceptable food waste and organic material 

  • Bones
  • Bread, pasta, grains
  • Cheese, yogurt
  • Coffee grounds and filters
  • Condiments
  • Eggs, eggshells
  • Fruits, vegetables
  • Meat, poultry, seafood
  • Nuts, shells
  • Pastries
  • Rice, beans
  • Tea bags

Unacceptable items

  • Compostable utensils, plates, cups
  • Electronics
  • Excessive or hot liquids
  • Foil
  • Glass
  • Human and animal waste
  • K-cups
  • Large quantities of oil or grease
  • Latex and rubber gloves
  • Metal
  • Plastic, plastic film
  • Styrofoam
  • Toxic materials
  • Waxy paper

If you have unopened leftovers

Donate all unopened, leftover food and beverages to a local food bank. The Downtown Evening Soup Kitchen (DESK) and the Yale Hunger and Homelessness Action Project (YHHAP) provide food for those in need. All non-perishable food and food that is refrigerated in a timely manner is accepted.