Chapter 23 Infographic: From farm to fork: risks along the herbal product supply chain. An example of potential risks and their sources in the supply chain chain for commercially-based dried plant products (e.g., herbal tea, spices, medicinal mixtures). The most common food safety risks associated with every step in the supply chain are highlighted in boxes, and the critical risk assessment steps are highlighted in the process (indicated by a magnifying glass and an exclamation mark).