Smart Food Spoilage Detection and Notification System

Abstract

Food spoilage is a significant cause of food waste in households, hostels, and small-scale food storage, creating both economic losses and health risks. This paper proposes a dual-mode Smart Food Monitoring System that provides automated detection and alerting for both packed and unpacked food items using a single integrated platform. For Packed Food Users enter product name, expiry date, and phone number via app. Provided information stored in PIC18F4520 microcontroller through Bluetooth (HC-05). The PIC18F4520 stores the data compared with the DS3231 RTC, checks expiry dates. The SIM800L GSM module sends SMS alerts two days before and on the expiry date. By combining expiry-date tracking for packaged items with sensor-driven spoilage detection for unpacked items, this system delivers a comprehensive, low-cost, and scalable solution for food monitoring. The proposed platform enhances food safety, reduces wastage, and supports smarter food management practices in residential and small commercial environments.