A circular economy platform that transforms food and agricultural surplus into community resources. Built in under 5 hours for the Amazon Hackathon 2025, ReHarvest enables farmers, restaurants, and composters to exchange surplus produce and byproducts — promoting food reuse, carbon footprint reduction, and sustainability at the local level.

Farms and restaurants regularly discard perfectly reusable food and byproducts due to a lack of local reuse infrastructure. Meanwhile, composters, animal farms, food banks, and biogas producers are actively seeking low-cost organic inputs.
ReHarvest bridges this gap through a smart, hyperlocal surplus exchange platform.

• ✅ Post Listing: Submit surplus food/agri byproducts (e.g., carrot tops, tomato scraps)
• 🔍 Browse Listings: View available waste resources from local users
• 🧠 Smart Matching: Simple logic recommends matches based on category + exchange type
• 📊 Impact Dashboard: Tracks total food diverted and CO₂ saved using FAO-based estimates
• 🧪 Filter by Category/Type: Quickly find the items you can use or donate
• 🧺 Mock Data Preloaded: Demo-ready with sample listings for instant testing

We use FAO’s estimate of 4.5 kg of CO₂ equivalent per 1 kg of food waste to quantify sustainability metrics.

const co2Saved = totalQuantityKg * 4.5;

The total CO₂ savings and food diverted are visualized on the Impact Dashboard using Chart.js or Recharts.

• Freemium SaaS Free usage + premium analytics & alerts
• B2B Logistics Cut Commission per pickup integration
• Carbon Credit Sales Offset emissions tracking monetized via carbon markets
• Data-as-a-Service Trend APIs sold to researchers and policy agencies
• City Licensing White-labeled versions for municipalities & NGOs

• 🧺 Food Waste Diverted Keeps usable byproducts out of landfills
• 💨 CO₂ Emissions Avoided Prevents methane emissions using FAO baseline
• 🔁 Circular Practices Waste becomes compost, animal feed, or biogas input
• 🌱 Soil Health Encourages nutrient recycling through composting

• Connects farmers, food businesses, composters & nonprofits
• Enables hyperlocal sustainability exchanges
• Helps small players access larger sustainability networks
• Drives behavioral change through education and metrics

🧠 Why ReHarvest Stands Out

• 🔁 Agri Byproduct Focus: Goes beyond edible food donation
• 📍 Hyperlocal Reuse: Enables circular systems in small communities
• 📊 Impact Tracking: Visual metrics tied to real environmental value
• ⚡ Hackathon Ready: Built in 5 hours, yet ready for scale
• 🌿 Built for Circularity: Not just a project — a vision for zero-waste loops

MIT License © 2025 – Amazon Hackathon Project by [ReHarvest]