This research demonstrates a simpler and faster way to prepare growing material for Portobello mushroom cultivation. Instead of the traditional 12-20 day composting process, researchers successfully used a 2-day self-heating method to prepare agricultural waste materials like grass and corncobs. When enhanced with proper supplements, this method produced mushroom yields comparable to conventional techniques. Impacts on everyday life: – Enables small-scale farmers to grow mushrooms with less infrastructure and investment – Reduces environmental impact by shortening the composting process that produces odors – Provides a way to convert agricultural waste into valuable food products – Makes mushroom cultivation more accessible to small producers – Could help increase local food production and food security