When purchasing espresso blend coffee beans, look for certifications such as Fair Trade, Organic, Rainforest Alliance, or Direct Trade. These certifications ensure the coffee beans are produced in an ethical and environmentally sustainable manner. Additionally, some roasters may have their own specialty certifications or labels that indicate quality and sourcing standards. It’s always a good idea to check the packaging or ask the retailer for information on certifications or labels to ensure you’re getting a high-quality product.