Schools in international education have the unique power to influence students from around the world to act more sustainably. This goes beyond classroom learning, allowing students to see sustainability in action through eco-friendly practices on campus. One accessible and impactful practice is composting. Let’s learn how schools can get started on setting up a compost programme. 

Understanding composting: More than just food waste

Composting is like nature’s recycling system. It’s a process where organic materials like food scraps and paper waste decompose into nutrient-rich soil. For schools, this means transforming daily cafeteria waste into a valuable resource. By composting, a typical school can divert up to 50% of its waste from landfills, significantly reducing its carbon footprint.

Starting a school cafeteria composting system

Implementing a composting programme doesn’t have to be complicated. Start by:

• Placing clearly labelled compost bins next to rubbish bins and recycling stations.
• Training cafeteria staff on what can and cannot be composted.
• Educating students through interactive workshops about proper sorting.
• Partnering with local composting services if on-site composting isn’t feasible.

Acceptable items for composting typically include fruit and vegetable scraps, coffee grounds, tea bags, and uncoated paper products. Avoid meat, dairy, and oily foods that can attract pests.

Creating learning opportunities

School gardens can become living classrooms by using the compost created from cafeteria waste. Students can:

• Participate in maintaining compost bins.
• Learn about nutrient cycles and soil health.
• Grow vegetables, herbs, and flowers using their own school-made compost.
• Understand the direct connection between waste reduction and food production.

Composting is more than a waste management strategy—it’s also an educational journey. By turning food waste into rich soil, institutions can teach valuable lessons about sustainability, circular economies, and environmental responsibility. Start small, be consistent, and watch your school’s sustainability grow over time. 

Written by Stephanie Clark