Soybean Raw Material Inventory Control Using EOQ Method at Pabrik Tahu Sutra Galih Dabeda

Abstract

The tofu industry in Indonesia continues to experience growth, leading to increased demand for soybean as its primary raw material. However, inefficient inventory management has caused excessive storage costs and overstock issues, especially in small-scale producers such as Tahu Sutra Galih Dabeda in Bandung. This study aims to analyze soybean raw material inventory control using the Economic Order Quantity (EOQ) and Total Inventory Cost (TIC) methods to improve operational efficiency. The research uses a qualitative case study approach, supported by quantitative calculations. Data were collected through interviews, documentation, and direct observation. Findings indicate that the factory’s current purchasing method, which relies on estimates, leads to irregular procurement patterns and rising costs. Applying EOQ allows the company to determine optimal order quantities, minimize total inventory costs, and avoid stockouts or surpluses. The TIC method further identifies the most cost-efficient balance between ordering and holding expenses. This research offers practical recommendations to enhance supply chain performance and reduce waste in raw material management, thereby supporting the business sustainability of tofu manufacturers.