FUTURE CONTRIBUTION AND IMPLEMENTATION

   If this research can generalize the system to detect food decay based on the methane gas concentration tracking, this idea can help children and anyone who cannot distinguish the upper limit of food. In addition, if IoT technology is combined to check the corruption status in real-time through mobile phones and home networks, guardians who are busy working can be a relief, and it also can be used to check the food and ingredients to maintain it in the best state.