The proper coffee bean sealed packaging typically involves using bags or containers that can provide protection from oxygen, light, moisture, and heat. Some common packaging options for coffee beans include:   1. Valve-sealed bags: These are often made of multilayer material with a one-way valve to release carbon dioxide while preventing oxygen entry.   2. Foil bags: These have a high-barrier layer that blocks out both oxygen and light, preserving the freshness of the beans.   3. Metal tin can container: These provide excellent protection against light and moisture. However, they may not offer a degassing feature for freshly roasted beans.   4. Glass jars: These can be effective in preserving the coffee beans' flavor and aroma, provided they are stored in a dark place to prevent light exposure. Regardless of the packaging material, it is crucial to ensure that the packaging is airtight and properly sealed to maintain the quality and freshness of the coffee beans. Additionally, it is recommended to store coffee beans in a cool, dark, and dry place to prolong their shelf life.