Marking the International Day of Zero Waste: Turning Tomato Waste into Opportunity
- 1 day ago
- 2 min read
Every year on 30 March, the world observes the International Day of Zero Waste, reminding the global community of the urgent need to reduce waste and rethink how we use resources. One everyday food clearly highlights this challenge: the tomato.
Zero-waste thinking encourages us to shift from disposal to value creation. Surplus or overripe tomatoes can be transformed into sauces, pickles, juices, chutneys, dried tomatoes, and powdered tomatoes, extending shelf life.
Tomatoes are among the most widely consumed vegetables, yet they are also among the most wasted. At the farm level, constraints such as limited farmer capacity, severity of extreme weather events including floods, droughts, and frost, limited and poor storage infrastructure, and poor post-harvest handling techniques are cited as significant challenges contributing to tomato waste. High pest infestations, including African bollworm, spider mites, whitefly, cutworm, tomato semilooper, and tomato leaf miner, result in significant post-harvest tomato losses.
Amongst these pests, the tomato leaf miner (Tuta absoluta) is the most destructive, often causing 100% yield loss if control measures are not implemented in time. During transport, poor packaging and inadequate transportation facilities accelerate damage. Tomato processing generates significant amounts of waste, including peels, seeds, pulp residues and spoiled raw materials. At the retail and household level, overstocking, improper storage and cosmetic preferences contribute to waste.
When tomato waste is not prevented or properly managed, it contributes to environmental, social, and economic challenges, thereby offsetting efforts to build sustainable food systems. Tomatoes disposed of in landfills produce methane, which adds to the carbon footprint and exacerbates climate change.
This also implies loss of resources, including land and water used in food production. Economically, tomato waste results in significant financial losses throughout the value chain. Tomato waste affects food security. Prices go up because tomatoes are produced but go to waste, making them inaccessible to people on low incomes.
But tomato waste is not just a problem; it can be turned into an opportunity
Zero-waste thinking encourages us to shift from disposal to value creation. Surplus or overripe tomatoes can be transformed into sauces, pickles, juices, chutneys, dried tomatoes, and powdered tomatoes, extending shelf life.
At the same time, non-edible applications of tomato by-products, such as peels, seeds and pulp residues, offer innovative pathways for sustainability. These include their use in animal feed, compost and organic fertilisers, natural colourants, bio-based materials and energy production. Such uses not only contribute to a circular economy by diverting waste from landfills, but also to food security and economic resilience.
As we mark the International Day of Zero Waste, the message is clear: what we often see as waste can become a resource; we must act decisively to turn every discarded tomato into an opportunity.
