Raw material management involves procuring high quality materials, managing their use in production, and ensuring an uninterrupted flow. For McDonald's, key aspects include procurement from approved suppliers, warehousing raw materials in cold storage to maintain freshness, and transporting items via refrigerated vehicles. Maintaining an unbroken cold chain from source to stores is crucial to preserving quality and reducing waste. Issues like subpar materials, improper quantities, transport damages, or delays are addressed through quality checks, trained staff, and logistics improvements.