The global issue of Food Loss and Waste (FLW) is gaining increased attention from both academic and policy circles. This challenge is progressively spreading, particularly in less developed and developing nations. This article aims to address the FLW concern within grape cultivation, proposing solutions for repurposing leftover materials from the crop. The paper will depict the current understanding of FLW, outline the supply and value chain of grape crops, and conduct an intricate analysis of production quantities, imports, exports, and processing. The study draws from the IPSUS project's research, which explores techniques for reclaiming plant and seaweed proteins through recycling raw materials. Additionally, it will explore the potential for upcycling and assess the quantity and quality of FLW at various points along the value chain. To evaluate FLW in viticulture, an IoT system will measure environmental parameters like air temperature, humidity, soil moisture, and precipitation. These measurements will help estimate harvest quality and quantity, pivotal aspects within the context of food loss and waste. The outcomes of this research will underscore the significance of repurposing grape crops, opening novel avenues for agricultural advancement in Romania.