Virtual Booth

ABSTRACT

The GlowSafe Lunchbox is an innovative student-led project developed to address food safety concerns among schoolchildren through a simple and practical early-warning system. Food spoilage and leakage inside lunchboxes are common issues that may expose children to food contamination and foodborne illnesses. Young children often fail to recognize the early signs of spoiled food, increasing the risk of consuming unsafe meals during school hours. To overcome this problem, the GlowSafe Lunchbox was designed using a low-cost moisture detection mechanism involving a saltwater-dried paper strip connected to a basic electrical circuit consisting of crocodile clips, wires, a battery, and an LED bulb. When moisture from leaking or spoiled food enters the sensor compartment, the dried salt strip becomes conductive and completes the electrical circuit, causing the LED warning light to activate. 

The methodology involved testing different food samples with varying moisture levels, including rice, curry, bread, and milk under fresh and spoiled conditions. Observations were recorded based on LED response and activation time. Results showed that moist or leaking food consistently activated the LED warning system, while dry food samples did not produce any response. The findings demonstrate that the GlowSafe Lunchbox can effectively function as a practical and educational early-warning tool for food safety awareness among schoolchildren. Although the innovation does not directly detect bacteria or toxins, it successfully identifies moisture presence, which strongly correlates with food leakage and potential spoilage. The project promotes STEM learning, creativity, hygiene awareness, and sustainable innovation through the use of simple and reusable materials.

Keywords: Food safety, schoolchildren, moisture detection, lunchbox innovation, early-warning system, STEM education.