What should I pay attention to when buying coffee beans?

Following Cafe Review (Wechat official account vdailycom) found that Beautiful Cafe opened a small shop of its own to learn about the baking date of coffee beans as food, coffee beans naturally also have indicators such as shelf life. Coffee beans are similar to seafood, the fresher the better. The indicator of freshness is the baking date. It is recommended to buy coffee beans with a roasting date of less than two weeks. Buy whole coffee beans (whol